Factual error: The old man is supposed to have accidentally ended up at Rita and Peter's wedding by just "getting on a train," and finding himself in Lake Forest (a far northern suburb of Chicago.) But he started out in Berwyn (a western suburb), and in order to get to Lake Forest from Berwyn, you have to get on one train, get off in downtown Chicago, walk several blocks, and then get on an entirely different line going to Lake Forest. In other words, not something you can "accidentally" find yourself doing, but something you have to know where you are going in order to do.
Factual error: In the scene where Chaplin and his wife are traveling to Europe by ship (when they find out Hoover has expelled him from the U.S.), the film shows the French Liner "Normandie" as it is leaving New York. The date shown on the film says September 1952. The "Normandie" however, was destroyed by fire in New York Harbor on February 9, 1942 as it was being converted into a U.S. troop ship for World War II. Incidentally, they filmed the scene on the R.M.S. Queen Mary in Long Beach, California, which in reality is probably the ship that the Chaplins actually took to Europe.
Factual error: When Marlene goes to the greenhouse and is killed by the falling glass, this would never have happened. It is a federal law that all greenhouses, skylights, and entry-ways are to be made of safety glass. The glass would have to have been made of either a Tempered glass, which breaks in a thousand pieces, like a car window, or Laminated glass, which cracks but does not fall apart, like a car windshield. Neither one of these glasses would have killed her. Surely, law abiding citizens like Clare and her Husband would have followed the zoning laws that came along with building their greenhouse.
Factual error: When Malcolm is talking on the telephone in an extreme close up, you can see the connector on the phone is one of the modern snap-in modular jacks. Telephones in the 1960's did not have those.
Factual error: In the scene where Daniel is flying the B-25 (Mitchell) to see Helen, you can see the propellers are turning much slower than needed for a cruising flight. Also, the sound of the engines is too low and keeps changing even though Nat and him are talking.
Factual error: In the beginning of the movie, where the skinheads beat up the Vietnamese victims in the underground train station, the train station is labelled as Footscray station. This is wrong because as most Melbournians would know, Footscray station is an open above ground station. The station in question is actually Richmond station. They only labelled it as Footscray station because Footscray is notorious for its large Vietnamese community.
Factual error: When Jimmy Hoffa is convicted in 1964, he is driven to the penitentiary in a 1967-68 Chevrolet Suburban.
Factual error: Some characters are shown at Paddington Station and in the background the train shown at the platform is a 1920s Southern Railway green electric driving coach. Paddington at the time of the film was home to the Great Western Railway which never operated electric trains and never used green livery on carriages. Furthermore the carriage was issuing copious amounts of steam (accurate for the period and venue) but impossible from an electric train.
Factual error: When Fitz and the Diggstown boys are playing 5 card stud poker, the cards are supposed to remain on the table. However, Corny has his cards in his hands, like they're playing 5 card draw poker.
Factual error: In the scene near the end where Bishop is chasing Q with the gun, Bishop gets off 6 shots from the .38 handgun, (the final shot hitting Q in the arm) although the snub-nosed .38 he's using only holds 5 shots.
Factual error: Rudy "Cheyenne" Cadena was not killed by his own gang as shown in the movie. In reality, he was killed by the Nuestra Familia, the rivals of the Mexican Mafia.
Factual error: The prison bus manages to utterly defy physics. Scott throws a grenade which detonates by the rear left wheel. However, the bus then rolls over toward where the explosion occurred, not away as it should have done.
Factual error: When the narcotics officers raid Michael and Karen's home on suspicion of drug dealing at the residence, tipped by an informant as stated by one of the officers, that would not be probable cause to raid a home. They would have had to do extensive surveillance and spotted many people coming and going, or witnessed the dealing itself, to do a drug raid, even if it was actually set up by Pete.
Factual error: During the flashback of Mr. Pink escaping, he smashes a car window and the window shatters into several large pieces. Car windows are made of tempered glass, which shatters into hundreds of small pieces.