Best movies like The Secret Door

Bob Sharkey, an instructor of would-be spies for the Allied Office of Strategic Services, becomes suspicious of one of the latest batch of students, Bill O'Connell, who is too good at espionage. His boss, Charles Gibson confirms that O'Connell is really a top German agent, but tells Sharkey to pass him, as they intend to feed the mole false information about the impending D-Day invasion.

A tense WWI spy thriller in which Colonel Duncan Grant (British star Brian Aherne, in his first talking role), parachutes into Germany to gather intelligence on the enemy’s secret ‘W Plan’ and to assist Allied POWs in digging escape tunnels.

A Nazi spy passes himself off as an optometrist in San Francisco's waterfront district. Someone robs him of his code book, and he must get it back.

American GI Ernie Williams, admittedly weak-kneed, has an uncanny resemblance to British Colonel MacKenzie. Williams, also a master of imitation and disguise, is asked to impersonate the Colonel, ostensibly to allow the Colonel to make a secret trip East. What Williams is not told is that the Colonel has recently been a target of assassins. After the Colonel's plane goes down, the plan changes and Williams maintains the disguise to confuse the Nazis about D-Day.

Allied agents infiltrate the Nazi rocket complex at Peenemunde in order to obtain their secrets and sabotage the plant.The film alternates between German developments of the V-1 missile and V-2 rocket (with a German cast speaking their own language) and discovery by British Intelligence of the weapon.

A former secret agent is sent to retrieve a priceless collection of stolen jewels from a Lisbon nightclub owner who worked both sides during World War II.

When an unauthorized letter is sent to Moscow alleging the U.S. government's willingness to help Russia attack China, former naval officer Charles Rone and his team are sent to retrieve it. They go undercover, successfully reaching out to Erika Kosnov, the wife of a former agent, now married to the head of Russia's secret police. Their plans are interrupted, however, when their Moscow hideout is raided by a cunning politician.

In 1942, an intelligence officer in North Africa encounters a female French Resistance fighter on a deadly mission behind enemy lines. When they reunite in London, their relationship is tested by the pressures of war.

A German spy is passing on information about the location of Allied ships in the neutral harbor of Goa, India, with catastrophic results. Unable to undertake a full military operation in the Portuguese stronghold, English intelligence brings out of retirement a crew of geriatric ex-soldiers, veterans from World War I, using their age as cover. These old soldiers are asked to take to the seas and pull off an unlikely undercover mission.

An American businessman visiting Lisbon gets mistaken for a British secret agent who stole some diamonds. As a result, he has everybody in Lisbon after him.

A young wife is becoming very distraught over the fact that her husband, a secret service "spy" for England, has changed his mind about transferring away so that he can spend more time with her and their young son. He has grown cold and distant towards her; she thinks it 's because of the secretiveness of his work. Meanwhile, an American spy comes to England and is induced to help the British "team" with an undercover spy ring. When this spy ring is over turned the "bugs" that crawl out from under its rock shocks everyone!

A CIA agent is used as a pawn in an insane woman's plan to steal a Polaris submarine.

In 1942 Britain was clinging to the island of Malta since it was critical to keeping Allied supply lines open. The Axis also wanted it for their own supply lines. Plenty of realistic reenactments and archival combat footage as the British are beseiged and try to fight off the Luftwaffe. Against this background, a RAF reconnaissance photographer's romance with a local girl is endangered as he tries to plot enemy movements.

A semi-fictionalized account of the life of Mata Hari, an exotic dancer who was accused of spying for Germany during World War I.

In a Stateside hotel during the height of World War II, young Danny Coogan dreams of joining the war effort. Following the murder of hotel guest Mr. Toulon by Nazi assassins, Danny finds the old man's crate of mysterious puppets and is suddenly thrust into a battle all his own. He discovers that Nazis Max and Klaus, along with beautiful Japanese saboteur Ozu, plan to attack a secret American manufacturing plant. After his family is attacked and his girlfriend Beth is kidnapped, it is up to Danny and the living deadly Puppets to stop this Axis of Evil.

During World War Two, Daffy Duck owns a junkyard which collects scrap metal to use in building weapons to continue the Allied fight against the Axis powers. Hitler reads about Daffy's scrap pile and about Daffy's stated intent to win the war with junk and, after throwing a fit and chewing a carpet like a mad dog, orders Daffy's scrap pile destroyed...

Sebastian is an undisciplined mathematics genius who works in the "cipher bureau" of the British Intelligence. While cracking enemy codes, Sebastian finds time to romance co-worker Rebecca Howard.

Major James Prentis VC is a British spy of World War II and war hero who goes under the code name of "Shuttlecock". Alienated from his family and children, he ends up in a mental institution in Lisbon, Portugal.

The Mediterranean, 1941/42 - Axis forces are using frogmen and manned torpedoes to attack previously impregnable harbours. The Allied forces need to come up with something to answer this threat, which they find in the form of Lt. Lionel "Buster" Crabb.

In the 17th of the 24 films in Monogram's "Range Buster" series, Texas ranch owner Conroy returns from Washington with an order for horses to be shipped to the Philippines. The Range Busters, Dusty, Davy and Alibi, are selected to take the horses there but, before leaving, they capture three spies who are trying to steal the horses and also learn that the ranch cook, Cookie, is a Japanese spy, but he manages to escape. In the Philippines, they go to a café for dinner and see Cookie and Miller, a German spy. Eavesdropping, they learn that Ken Richards, a neighboring Texas rancher, is the Axis contact back in the states. They capture Cookie and break up the spy ring in the Phillipines, and then return to Texas intent on settling matters with Richards. They do so and are honored by the U.S. Government just as the radio blares forth the December 7, 1941 announcement of the Pearl Harbor bombing. They head for the nearest enlistment station.

Set during the Allied invasion of the island of Guadalcanal in the Pacific theater during WWII, this film is based on the novel by James Jones. Keir Dullea is Private Doll, who dreads the invasion and steals a pistol to help him protect himself. Sergeant Welsh (Jack Warden), a caustic, battle-scarred veteran, hates Doll, whom he considers a coward. In battle, Doll kills a Japanese soldier and is filled with remorse, which further angers the sergeant. The next day, an emboldened Doll wipes out an entire enemy machine gun post and begins to feel as sadistic as Welsh. The two must work together to clear away some mines, but as they do, their platoon is surprised by a Japanese raid.

As the Allied forces approach Paris in August 1944, German Colonel Von Waldheim is desperate to take all of France's greatest paintings to Germany. He manages to secure a train to transport the valuable art works even as the chaos of retreat descends upon them. The French resistance however wants to stop them from stealing their national treasures but have received orders from London that they are not to be destroyed. The station master, Labiche, is tasked with scheduling the train and making it all happen smoothly but he is also part of a dwindling group of resistance fighters tasked with preventing the theft. He and others stage an elaborate ruse to keep the train from ever leaving French territory.

The lady of a top fashion magazine doubles as a jewel thief and becomes involved in Moroccan intrigue.

From master storyteller and best-selling author, Ken Follett, comes the exotic spy-thriller based on true events. North Africa, Summer of 1942 — master spy, Alex Wolff is on a mission to send General Erwin Rommel's advancing army the secrets that would unlock the doors to Cairo... and the ultimate Nazi triumph in the war. Wolff's pursuer, Major Vandarn, engages the seductive charm of Elene Fontana to lure him into range for what is to be a startling and explosive confrontation.

The story about a man-sized frog named Prince Frederic who is turned into a frog by his wicked aunt Messina and hired by British Intelligence to solve the mysterious disappearances of some of Britain's greatest monuments. Several hundred years later, Freddie is now living in modern day Paris -- a six-foot-tall amphibian with the moniker Secret Agent F.R.O.7. Messina, too, is still around causing mischief, joining forces with an arch-villain named El Supremo in a scheme to shrink Big Ben. Freddie, alerted to Messina's nefarious plans, gathers his fellow agents Daffers and Scottie together, planning to hide out in Big Ben and surprise the evil doers when they are set to strike at the much-loved British landmark.

In preparation for Operation Overlord, the Allied invasion of Nazi occupied territory, the 'overlords' were the few Allied agents who knew the details of the operation. When one them is captured by the Germans, a double agent must infiltrate occupied Paris, with the help of a high level German officer and the French resistance.

During WWI pretty German master spy Helene von Lorbeer is sent undercover to London to live with the family of a high-placed British official where she is to rendezvous with the butler Valdar, also a spy, and help him transmit secret war plans back to Germany.

Spies force former jewel thief Michael Lanyard to steal defense secrets in Washington.

American Civil War, 1862. After the disaster of the Second Battle of Bull Run, Major Allen, chief of the Secret Service of the Union, asks actress Gail Loveless to become one of his operators and infiltrate enemy territory.

Drummond goes up against foreign agents who are trying to steal plans for a top-secret aircraft.

Dutch patriots, a U.S. officer and a British spy fool the Nazis with a fake Soho film company.

It is 1915 in Vienna and the Great War has caused many casualties. Elsa, a beautiful prostitute, wants to help the war effort, but is rejected as a nurse, but a government official thinks that she will make an excellent spy.

Boris Turganev (Murray) is a Russian scientist who has absconded from a Communist prison in an attempt to achieve a better life working for the British. As Boris struggles to make his superiors believe he is there to work and not to spy for the Russians, an office romance blossoms that could put his mission in jeopardy.

During the Second World War a British schoolteacher working in Denmark is caught up when the Germans invade.

Madeline Goddard, is a British double agent who meets and falls in love with a German spy Baron Karl Von Marwitz during World War I. This tale of espionage blends high adventure and romance making perfect order from wartime chaos and growing in faith from despair.

Duncan Jax must stop the evil terrorist Scarlet Leader from acquiring nuclear bombs that could start WW3. Together with the trusty baboon, Boon, he takes on the almost impossible mission! He must steal the gold that Scarlet leader plans to use to purchase the weapons of destruction.

Jane Froman (Susan Hayward), an aspiring songstress, lands a job in radio with help from pianist Don Ross (David Wayne), whom she later marries. Jane's popularity soars, and she leaves on a European tour... but her plane crashes in Lisbon, and she is partially crippled. Unable to walk without crutches, Jane nevertheless goes on to entertain the Allied troops in World War II.

Wartime secret agents are on a mission to destroy a deadly new type of torpedo, hidden in a Nazi stronghold in France.

The film is based on the actual events of the Portland Spy Ring trial in the U.K. A disgruntled Navy Clerk is transferred to a secret research establishment and is subsequently black-mailed/paid by Czech intelligence to procure secrets for them. He seduces the secretary who controls the most secret documents, and they enjoy the fruits of their treachery until the British authorities begin to close in on them.

Major Lex Kearney, dishonourably discharged from the army for cowardice in battle, volunteers to go undercover to try to prevent raids against shipments of horses desperately needed for the Union war effort. Falling in with the gang of jayhawkers and Confederate soldiers who have been conducting the raids, he gradually gains their trust and is put in a position where he can discover who has been giving them secret information revealing the routes of the horse shipments.

When Barry Corvall discovers that his new bride is a possible enemy agent, he resigns from the diplomatic service to go undercover to route out an espionage ring planning to destroy American industrial capability.

Some dastardly criminals have stolen some top secret plans and tattoo them on the back of a woman so she can sell them to the highest bidder in Lisbon. This woman plans to take the place of a 'Sidney Royce', a legitimate traveler going to Lisbon as a reporter. Crossed signals allows the real Sidney to reach Portugal first, where she is pursued by those trying to obtain the plans and US government agents trying to prevent the sale.

One man’s campaign for vengeance takes on national stakes after he is revealed to be a former operative of a powerful and clandestine organization known as Beekeepers.

The outbreak of World War I places Scots officer Geoffrey Richter-Douglas in an uncomfortable position. Although his allegiance is to Britain, his mother was from an aristocratic Bavarian family, and he spent his summers in Germany as a child. When Geoffrey is approached by a German spy who offers him a chance to defect, he reports the incident to his superiors, but instead of arresting the spy they suggest that he accept her offer--and become an Allied agent. In Germany, among old friends, Geoffrey discovers that loyalty is more complicated than he expected, especially when he finds himself aboard the maiden voyage of a powerful new prototype Zeppelin, headed for Scotland on a secret mission that could decide the outcome of the war.

A biography of the English mathematician Alan Turing, who was one of the inventors of the digital computer and one of the key figures in the breaking of the Enigma code, used by the Germans to send secret orders to their U-boats in World War II. Turing was also a homosexual in Britain at a time when this was illegal, besides being a security risk.

36 Husbands is a mystical, musical, Kung Fu spy comedy starring 3 powerful women - and a bunch of husbands. Krista, top spy and Kung Fu master, has extraordinary powers and she puts them in action on her quest to slow down the steady march towards World War III. Together with her Kung Fu disciples, Gina and Nola, (and Frankie, a spy on-loan from MI6) they fight and love their way across the world leaving a trail of broken hearts and sabotaged plans. All the spies and evil-doers are tuning into the Bright Blue Gorilla TV show. Why do they watch? Is it the music, is it the comedy? Maybe you can figure it out.

Toulon's immortal puppets need to prevent the Nazis from winning World War II. Blade, Leech Woman, Pinhead and the others try to fight their fellow Nazis. A fateful battle begins.

During World War I, German spies will stop at nothing to spy on the allied war plans stored at Gibraltar.

During World War I, a professional thief known as The Lone Wolf is assigned to steal a cylinder with important information from behind the German lines and bring it to Allied intelligence headquarters. However, German agents set out to stop him, headed by the man who was responsible for the death of the thief's sister.

Sally Carter Rand, married to an elderly senator, is accused of espionage, but she is able to clear herself by proving that her mysterious knitting is actually a baby sweater.