My Stepmother Is an Alien (1988)

Miles Monroe, a clarinet-playing health food store proprietor, is revived out of cryostasis 200 years into a future world in order to help rebels fight an oppressive government regime.

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.

Special Forces commandos on a mission are abducted mid-operation by a mysterious spacecraft. Upon waking aboard, they find themselves prey to a relentless alien race in a fight for survival.

Unlikely hero Mickey Barnes finds himself in the extraordinary circumstance of working for an employer who demands the ultimate commitment to the job… to die, for a living.

Adventurer/surgeon/rock musician Buckaroo Banzai and his band of men, the Hong Kong Cavaliers, take on evil alien invaders from the 8th dimension.

In a future where Mars is terraformed and colonized by the best humanity has to offer, two very different college students wind up joining forces and sneak onboard a space shuttle to the red planet in order to be united with their significant others.

In the town of Dillford, humans, vampires and zombies were all living in peace - until the alien apocalypse arrived. Now three teenagers-one human, one vampire, and one zombie-have to team up to figure out how to get rid of the visitors.

Lilo, Stitch, Jumba, and Pleakley have finally caught all of Jumba's genetic experiments and found the one true place where each of them belongs. Stitch, Jumba and Pleakley are offered positions in the Galactic Alliance, turning them down so they can stay on Earth with Lilo, but Lilo realizes her alien friends have places where they belong – and it's finally time to say "aloha".

In 1970s London, a teenage outsider named Enn falls in love with a rebellious alien girl named Zan, who has come to Earth for a party. Together, they navigate the complexities of intergalactic culture and the trials of first love.

After status-obsessed teen Sara has sex for the first time, she wakes up the next day nine months pregnant-with an alien.