Betty White was originally cast to play Helen Hunt's mother, Beverely Connelly, but she objected and withdrew from the role because the begining of the movie has Melvin Udall dumping Verdell down the garbage shoot. Betty White is a huge animal rights activist.

Helen Hunt won a Oscar for her role in this movie. Earlier that year she won an Emmy for Mad About You making her the only actress in history to win both awards in the same year.

In China this film was renamed 'Mr. Cat-Poop'. Submitted by omegaman3000

There were 5 alternative endings filmed for this film.