Blast Off to Fun: 18 Family-Friendly Sci-Fi Movies That Are Out of This World!

An alien is left behind on Earth and saved by the 10-year-old Elliot who decides to keep him hidden in his home. While a task force hunts for the extra-terrestrial, Elliot, his brother, and his little sister Gertie form an emotional bond with their new friend, and try to help him find his way home.

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.

Eighties teenager Marty McFly is accidentally sent back in time to 1955, inadvertently disrupting his parents' first meeting and attracting his mother's romantic interest. Marty must repair the damage to history by rekindling his parents' romance and - with the help of his eccentric inventor friend Doc Brown - return to 1985.

While hiding from bullies in his school's attic, a young boy discovers the extraordinary land of Fantasia, through a magical book called The Neverending Story. The book tells the tale of Atreyu, a young warrior who, with the help of a luck dragon named Falkor, must save Fantasia from the destruction of The Nothing.

12-year-old David is accidentally knocked out in the forest near his home, but when he awakens eight years have passed. His family is overjoyed to have him back, but is just as perplexed as he is that he hasn't aged. When a NASA scientist discovers a UFO nearby, David gets the chance to unravel the mystery and recover the life he lost.

After a lightning bolt zaps a robot named Number 5, the lovable machine starts to think he's human and escapes the lab. Hot on his trail is his designer, Newton, who hopes to get to Number 5 before the military does. In the meantime, a spunky animal lover mistakes the robot for an alien and takes him in, teaching her new guest about life on Earth.

The scientist father of a teenage girl and boy accidentally shrinks his and two other neighborhood teens to the size of insects. Now the teens must fight diminutive dangers as the father searches for them.

Video game expert Alex Rogan finds himself transported to another planet after conquering the video game The Last Starfighter, only to find out it was just a test. He was recruited to join the team of best Starfighters to defend their world from the attack.

After their father is called into work, two young boys, Walter and Danny, are left in the care of their teenage sister, Lisa, and told they must stay inside. Walter and Danny, who anticipate a boring day, are shocked when they begin playing Zathura, a space-themed board game, which they realize has mystical powers when their house is shot into space. With the help of an astronaut, the boys attempt to return home.

When space galleon cabin boy Jim Hawkins discovers a map to an intergalactic "loot of a thousand worlds," a cyborg cook named John Silver teaches him to battle supernovas and space storms on their journey to find treasure.

As Stitch, a runaway genetic experiment from a faraway planet, wreaks havoc on the Hawaiian Islands, he becomes the mischievous adopted alien "puppy" of an independent little girl named Lilo and learns about loyalty, friendship, and ʻohana, the Hawaiian tradition of family.

Lewis, a brilliant young inventor, is keen on creating a time machine to find his mother, who abandoned him in an orphanage. Things take a turn when he meets Wilbur Robinson and his family.

Bolt is the star of the biggest show in Hollywood. The only problem is, he thinks it's real. After he's accidentally shipped to New York City and separated from Penny, his beloved co-star and owner, Bolt must harness all his "super powers" to find a way home.

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...

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.

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

A special bond develops between plus-sized inflatable robot Baymax, and prodigy Hiro Hamada, who team up with a group of friends to form a band of high-tech heroes.

When Earth is taken over by the overly-confident Boov, an alien race in search of a new place to call home, all humans are promptly relocated, while all Boov get busy reorganizing the planet. But when one resourceful girl, Tip, manages to avoid capture, she finds herself the accidental accomplice of a banished Boov named Oh. The two fugitives realize there’s a lot more at stake than intergalactic relations as they embark on the road trip of a lifetime.