Deleted Scenes: Brooks' biography states there was a scene in a restaurant where two giant lobsters pick out a human from a swimming tank to eat. Despite Mel and the crew loving it, the scene wasn't received well in the previews.
Real-Life Relative: The pregnant woman they pick up at the beginning of the movie and drop off at the hospital is Dom De Luise's real wife Carol Arthur. It isn't a double-family member, though - she was not actually pregnant at the time. Their youngest son, David, had been born a few years previously.