When Chris Farley(Tommy Boy) is in the bathroom on the airplane near the end of the movie, his tie is sucked into the toilet and covered with blue cleanser. However, when Chris Farley and David Spade(Richard) are on the elevator with Dan Aykroyd (Zylinski, Farley's tie is clean as can be. There are many other slip up's in this movie so keep your eyes open and add them as you see them. I will do the same...