According to Kirstie Alley in her memoir, she fell in love with John Travolta during filming, but she stayed faithful to her husband.
Of all the roles he's played, John Travolta said the character he plays in this film is the most like his real personality.
John Travolta said this was the only time, after watching a premiere of his, that he knew he was going to be in a major hit.
Amy Heckerling first pitched the movie to Disney. Disney CEO Michael Eisner felt that it was too sexual for them even for their Touchstone Pictures banner. Paramount Pictures, Warner Bros, Orion Pictures, 20th Century Fox and Universal Studios also passed on it. Ultimately it was TriStar Pictures who liked the script and green lit the film with a $7 million budget.
Amy Heckerling was inspired to write the film after her husband and writer Neal Israel started playfully talking in a different voice to pretend what their new baby would say. Her husband also has a cameo as Kirstie Alley's character's boss.