Best movies like My Grandpa is an Alien

A friendship with a top-secret robot turns a lonely girl's life into a thrilling adventure as they take on bullies, evil bots and a scheming madman.

Curmudgeonly old Frank lives by himself. His routine involves daily visits to his local library, where he has a twinkle in his eye for the librarian. His grown children are concerned about their father’s well-being and buy him a caretaker robot. Initially resistant to the idea, Frank soon appreciates the benefits of robotic support – like nutritious meals and a clean house – and eventually begins to treat his robot like a true companion. With his robot’s assistance, Frank’s passion for his old, unlawful profession is reignited, for better or worse.

A vacationing family encounters an alien threat in this pulse-pounding thriller based on the real-life Brown Mountain Lights phenomenon in North Carolina.

The population of the planet Alcyone is split in two; the cultures of the Ceveans and the Storrions are locked in eternal war, destroying their home. Led by their priestess Amiel, the Ceveans constructed the Ark in an attempt to flee their world, but the Ark was ceased by the Storrions, enslaving some of the Ceveans and banishing the rest to the wastelands.

In a soon to be demolished block of apartments, the residents resist the criminal methods used to force them to leave so a greedy tycoon can build his new skyscraper. When tiny mechanical aliens land for a recharge, they decide to stay and help out.

A peaceful alien planet faces annihilation, as the homeless remainder of the human race sets its eyes on Terra. Mala, a rebellious Terrian teenager, will do everything she can to stop it.

Buzz Lightyear must battle Emperor Zurg with the help of three hopefuls who insist on being his partners.

It's one giant step for dog-kind as Scooby-Doo and the Gang blast off for an epic, other-worldly adventure in this all-new original movie! After winning the last 5 seats in a lottery, Scooby-Doo, Shaggy, Fred, Daphne and Velma are off to space in billionaire Sly Baron's brand new ship, the Sly Star One. It's all gravity-free fun until a mysterious alien begins destroying the ship! As the ship breaks down, the crew is forced to land on Sly Baron's base... on the dark side of the moon! Will the gang unravel this alien mystery? Will Scooby-Doo and Shaggy find snacks on the moon? Will Fred ever take his space helmet off?! Journey to the outer limits with Scooby-Doo to find out!

When Martians suddenly abduct his mom, mischievous Milo rushes to the rescue and discovers why all moms are so special.

In the small town of Rockwell, Maine in October 1957, a giant metal machine befriends a nine-year-old boy and ultimately finds its humanity by unselfishly saving people from their own fears and prejudices.

Jack Shepard is an out-of-shape auto shop owner, far removed from the man who once protected the world's freedom. Reluctantly called back into action by the government, Jack is tasked with turning a ragtag group of kids with special powers into a new generation of superheroes to save the world from certain destruction.

The Seventh Doctor becomes the Eighth. And on the streets of San Francisco – alongside new ally Grace Holloway - he battles the Master.

Scientist Doctor Who accidentally activates his new invention, the Tardis, a time machine disguised as a police telephone box. Doctor Who, his two grand-daughters, and Barbara's boyfriend Ian are transported through time and space to the planet Skaro, where a peaceful race of Thals are under threat of nuclear attack from the planet's other inhabitants: the robotic mutant Daleks.

When Susan Murphy is unwittingly clobbered by a meteor full of outer space gunk on her wedding day, she mysteriously grows to 49-feet-11-inches. The military jumps into action and captures Susan, secreting her away to a covert government compound. She is renamed Ginormica and placed in confinement with a ragtag group of Monsters...

Three aliens morph into super-hot babes and arrive to protect the earth from the intergalactic forces of evil. Guided by Syntax, their holographic mentor, these Illegal Aliens are willing to use every trick in the book and every sexy outfit in their wardrobe to accomplish their mission! "Illegal Aliens" pokes fun at today's Hollywood and pays tribute to the so-called "Bad Movies" we all love to hate.

ZIM discovers his almighty leaders never had any intention of coming to Earth and he loses confidence in himself for the first time in his life, which is the big break his human nemesis, Dib has been waiting for.

When Earth astronaut Capt. Chuck Baker arrives on Planet 51 -- a world reminiscent of American suburbia circa 1950 -- he tries to avoid capture, recover his spaceship and make it home safely, all with the help of an empathetic little green being.

In a small Oregon town, mysterious crop circles have begun appearing in Joe's corn fields. When Joe's cousin, his five college friends and local Sheriff Willingham happen upon the otherworldly designs, they unleash unfathomable terror.

Comet longs to be taken seriously as a full-fledged space chimp. He journeys to the fantastical Planet Malgor and bonds with the adorable alien Kilowatt, living out his ultimate fantasy. However, it's time for Comet to prove himself when the feared alien ruler Zartog takes over Mission Control! Comet must show he has the right stuff, and join fellow chimps Ham, Luna and Titan, to save the day.

While carrying on their usual hi-jinks, they inadvertantly stow-away on a spaceship bound for Mars. They meet up with the local Martian residents and cause them to invade the Earth, aided by the "Invincitron", a vacuum-wielding giant robot. Tom, Jerry and their Martian ally, Peep, save the day.

Ben and a mysterious girl from his past must prevent an alien threat from destroying the world.

A scientist fights to save his daughter when she is chosen as one of the eight million human beings who are kept hostage by an alien species in order to save their planet.

A group of aliens arrive on Earth as part of an advance invasion force. Their mission is to kidnap a small sample of humans and run them through a series of rigorous tests to determine if they would make suitable slaves. Harper, one of the alien experimenters, has become frustrated with her planet's endless cycle of conquest and extermination and begins to feel some sympathy for her human captives. While the prisoners see a glimmer of hope in the compassionate alien, will it be any use in stopping the enormous attack fleet just a few days from Earth?

In the near future the earth has become desolate and dangerous. Now inhabited by by a mysterious race of creatures, humanity has been forced to find refuge in the SkyArk, a man-made city in the sky. As the population grows, space becomes scarce and only the rich and powerful can stay, dumping the poor and orphaned of SkyArk to the abandoned earth.

After a battle in a power plant, Ben notices something strange is happening with the omnitrix, but doesn't tell anyone. Tetrax arrives, and tells them the omnitrix is broadcasting a self destruct signal. Tetrax and Ben go to find the creator of the omnitrix to fix the omnitrix before it destroys itself and the universe along with it. Gwen stows away to help her cousin.

After an alien spacecraft destroys Washington, D.C., the residents of a small town must fight off a unit of alien soldiers on the hunt for the President of the United States and the mysterious device he's carrying after his escape chopper crash lands nearby.

When Roger (a Robin Hood-esque, stray dog) and Belle (an elegant yet spoilt pet cat) are thrown together amidst the chaos of a robot take-over of their home city, they must push all their preconceptions aside in order to survive, as they embark on a high-stakes, action-packed adventure.

A robotic boy and a human boy join forces to save their parents from the organization that funded the robot's creator.

The first Cylon war has been raging for 10 years and a young Ensign William Adama joins the fleet. Disappointed not to be assigned to a fighter but to a freighter, his co-pilot also isn't too keen on having a rookie flying his aircraft as he has only a short time before he again becomes a civilian. Their cargo is a civilian scientist, but they no sooner leave than she has new orders for them and a new destination. Although she’s less than forthcoming about the details, Adama is keen—particularly as it involves going into Cylon controlled space. However, nothing is as it seems.

A long forgotten ancient spacecraft discovered on Earth. Investigations carried out by Scout transport her to the moon whereupon she meets the impressive machines preserving the wisdom of that long lost civilization.

During their search for a habitable planet the last living humans crash-land on a barren world, inhabited by bloodthirsty aliens and mysterious post-apocalyptic warriors.

Disguised as executives from a Dutch Oil Company, Aliens from outer space buy a local farming company and promise to create jobs for the failing farming town. Their goal is to use crop circles to heat up the temperature of the earth and eventually turn the entire planet into a Club-Med for extra-terrestrials.

A teen gamer is forced to level up to full-time babysitter when his favorite video game drops three superpowered infants from space into his backyard.

In the future, mankind's quest for answers will take them to the edge of the universe... but the knowledge they seek should never be known. In deep space, the military cruiser Venom is diverted from its mission to investigate a derelict freighter ship, the Prometheus. On board, all of the crew are dead - victims of sabotage - and its only cargo is a weapon that will change the course of time and their destiny.