According to the commentary track of their compilation video Direct from Brooklyn (1999) (V), the video for "Put Your Hand Inside the Puppet Head" by alternative rock band They Might Be Giants was filmed using this film's tails and unused film.
Mark R. Burns got the idea to write a Mob movie when he was ten years old and a house in his Long Island suburban neighborhood was raided and the father was discovered to have been in the Mob.
There were so many scenes that didn't make it into the movie that Jonathan Demme decided to place them at the end during the credits to sort of retell the story.
The climatic scene in the Honeymoon Suite was originally written to take place in the Everglades.
Dean Stockwell stayed in character the entire time during shooting.
Matthew Modine initially didn't think that there was anything funny about the script.
The filmmakers' did six rewrites in order to convince Tom Cruise to play the part of Mike. Cruise opted for Cocktail (1988) instead.
Jessica Lange was the filmmakers' first choice to play Angela.
The apartment complex where Angela moves to in New York is the same complex used in Child's Play (1988).
According to Matthew Modine, he was depressed during the making of this film due to his rough experience while making Full Metal Jacket (1987).