Character mistake: Baxter and Granville complain about Brewster getting airtime on TV during prime time and running TV spots in all 52 states "just in case any New Yorkers are on vacation!" (01:08:00)
Continuity mistake: When Monty punches that guy at the end, check out how the parting of his hair goes from left to right and back again in one shot as he falls and gets up.
Factual error: Clocks usually mark the hour with their first chime. The one in Granville and Baxter's office starts striking in the seconds leading up to midnight, even though its hands are showing the time as still before the hour.
Character mistake: During their arraignment, Spike pled guilty and Brewster pled not guilty, so the judge should have fined Spike rather than offering bail.
Continuity mistake: When Brewster goes to buy a stamp, the shop owner shows him the upside down airplane stamp. He is holding the stamp with a pair of forceps. The stamp is shown from the back, then from the front, then the back, and the front again. The view from the back has the forceps holding the stamp at the same angle. The views from the front has the stamp being held at two different angles.