Continuity mistake: When Webster breaks into his first house, he has his briefcase open, so he can get at the items he needs, but before he leaves, he picks up the torch that is sitting on his closed briefcase - he never closed his briefcase; it was open all the time.
Continuity mistake: During the opening credits, the marching band pass the Queen Victoria statue in Windsor twice on their way to the castle.
Continuity mistake: When Linus and Lucy are talking to Snoopy he's got a shopping cart stuck on his right leg. Then, when he's getting on the bus it's suddenly on his left leg.
Other mistake: Throughout the whole scene when Black Caesar is wounded by the Irish hitman several passers-by can be seen looking directly into the camera, and in many shots people are crowded together on the sidewalk watching the filming. Conversely, the hitman fires a big and loud revolver in the middle of a crossing with dozens of people and cars in close quarters, and nobody bats an eyelid. (00:03:00)
Factual error: James Caan plays a US Navy Boatswain (Bo'sun) Mate. His rank insignia of BM 1st Class should be worn on the right sleeve, but he has it on the left.
Audio problem: When the king's army officers are talking, the one who criticizes his adviser's mouth doesn't match with what he's saying.
Continuity mistake: After spotting her dream house Susan runs to the door. As she approaches the house it's not the same building she spotted from the car. (01:23:50)
Character mistake: After Clinton's phone call, Christine talks with her assistant and making fun of the "mourning", she says "We went directly to Streisand's opening at the Sands right from the cemetery." However, in Vegas Barbra Streisand never performed at the Sands; she did the International (then Hilton) and the Riviera. (00:05:15)
Revealing mistake: Despite them wearing masks at the end you can still see a lot of the amazons are being played by men - you can see hints of beards.