Trivia: Christopher Walken made the trick shot in Phil's poolroom upstairs on the first try. According to the filmmakers, this was supposed to be one of several practice shots, but the cameras were rolling "just in case" he made it.
Trivia: One of the producers makes a cameo appearance in the movie as pro pool player Bobby LeBlanc. He is also responsible for making all the shots in the movie where the actor's faces aren't visible and only their hands are.
During the final pool sequences, there's a quick glimpse of the main character's left (broken) wrist. It's normally all purple and gross looking, but in a brief shot, you can see his left hand shooting the pool cue and there is no purple swelling.