During the end credits, a picture of Jake (Jack Palance) doing a one-armed push-up with one of the Robberson's kids was flashed. This was a reference to what Palance did after he accepted his Academy Award for Best Actor in a Supporting Role, for "City Slickers (1991)."
The location of the diner(Hawthorn Grill)where Chevy Chase has a bagel near the beginning of the movie is the same diner used in the movie Pulp Fiction.
The family portraits on the wall during the breakfast scene are of the originals owners of the house used for filming.
The music heard throughout the film is the theme music from "Poltergeist (1982)." Except for the scene where Chevy looks up the waiter's record. This includes theme music from "Miami 50" and "Dragnet."
Initially, the role of Helen [ Robberson] was not fully developed, but "we were so excited about the possibility of casting an actress of Dianne Wiest's caliber that we gave Helen's part a big boost," said producer Nancy Graham Tanen. Norman Robberson (Chevy Chase)'s wife, Helen, is a woman obsessed with being the perfect mom, which proved to be a challenge for Wiest. "We were doing a scene at the top of the staircase," recall director Michael Ritchie, "when Dianne suddenly looked at me nervously and said, 'Oh, dear, I don't know who I am.' I leaned over and said, 'Marilyn Quayle,' and that was all she needed. It's that kind of devotion to family values that makes Helen click, and it's that kind of devotion to her craft that makes Dianne click."