My Stepmother Is an Alien

"My Stepmother Is an Alien" (1988) is a science fiction comedy film that follows the story of Celeste, an extraterrestrial woman who crash-lands on Earth after her home planet's gravity is disrupted by Steven Mills, a widowed scientist raising his 13-year-old daughter. As Celeste navigates her new life as a human, she finds love with Steve and begins to question where she belongs, all while being aided by an alien tentacle named Bag that has its own mind and senses of humor. When Celeste's home world needs her to return to finish a mission, she must decide between her duty and the family she has grown to love on Earth.