My Stepmother Is an Alien

My Stepmother is an Alien is a 1988 American comedy science fiction film produced by the Weintraub Entertainment Group for release through Columbia Pictures, directed by Richard Benjamin and starring Dan Aykroyd and Kim Basinger, with featured performances by Jon Lovitz and Alyson Hannigan.

Celestes inexperience almost results in her exposing herself as alien when she struggles with simple tasks like trying to kiss for the first time or cooking. Jessie Mills Alyson Hannigan, Stevens 13yearold daughter, notices Celestes strange habits, like eating car batteries and pulling hard boiled eggs out of boiling hot water with her bare hands and becomes suspicious of her. However, she cant convince her smitten father that there is something unusual about Celeste. Ron also has his doubts about Celeste, but more on the basis that he feels his brother is doing too much too soon by asking to marry Celeste only a few days after they first met. Ron tries to dissuade Steven from marrying Celeste on the idea she is an illegal immigrant or planning economic espionage, but then admits he is jealous his brother found his dream girl whereas he will never find a girl like Princess Stphanie of Monaco.Celeste encounters a lot of new experiences such as sneezing, sexual intercourse and love. When finally confronted about being an extraterrestrial by Jessie, Celeste admits her home world is without emotion. Celeste plans to depart once she discovers the truth, but is put in a quandary by Jessie, who says it will devastate her father, whom Celeste has now developed feelings for. After Jessie argues with her dad, she runs away and is nearly hit by a car, but is saved by Celestes powers. This reveals to Steven that Celeste is indeed an alien and that she has fallen in love with him as well as accepting Jessie as her own daughter. When the leaders of Celestes home world report in they ask her to destroy the planet Earth until she and Steven manage to convince them it was not an act of aggression, but an accident. They accept the explanation on the basis that gravity is returning to normal on their planet and give their blessing for Celeste to be with Steven. Initially, however, they demand that Celeste return to explain human culture to them but settle for a native of Earth to ser

Source: Wikipedia