Continuity mistake: When Tommy and Darwin Mayflower are in the back of the limo, Darwin dives out and the door slams immediately before Tommy has time to catch it. The shot changes to outside the limo and Darwin is just now jumping from the limo. It is not just the same shot from a different angle because this time the door stays open much longer, long enough for the limo to drive out of the shot. From this angle there would have been more than enough time for Tommy to grab the door.
Trivia: The film was a passion project for Bruce Willis for nearly a decade before production. It was based on a character and concept he came up with, with the help of songwriter Robert Kraft. The concept was originally written to be the basis of a semi-comedic song, but Willis and Kraft loved the character so much, they decided to try and adapt it into a feature film. Willis' success with the "Die Hard" franchise gave him the power to get the film made. However, the passion project quickly turned into a nightmare, with creative clashes between Willis and director Michael Lehmann, extensive re-writes being done on-set, and a generally troubled shoot. It ended up being the only film project Bruce Willis received a writing credit for.