Factual error: The middle third of the film recounts Dr. Thompson meeting Laszlo at the 1972 Superbowl (VI) in Los Angeles, however, in 1972 the game was played in New Orleans.
Continuity mistake: Near the beginning of the film, Bill Murray takes a seat front-row-center in court. Moments later, he's doing push-ups in the corridor. A few moments later, he's back in the same seat front-row-center in the courtroom.