Factual error: There are Velcro straps holding the pads on the blocking sled, and there is an end zone goal post with one base. Both of these items did not exist until the late 60s.
Factual error: Approximately three quarters of the way in to the film, there is a close up of a German soldier handing an officer a file of documents. The helmet that the soldier is wearing is a post war 1960s version. This can be determined by the lack of an air vent and rivet on the side of the helmet.
Factual error: A woman is shown receiving electroshock treatment ("ECT") in a hospital scene which took place in 1928. Although chemicals were used to induce seizures in psychiatric treatments at the time, the use of electricity for the purpose was not discovered until 1937 and not used in the United States until 1940.
Factual error: In a scene that is twenty-eight minutes into the movie, one of the characters is seen running up to check out a new Cadillac that had been given to him by the owner of Chess Records. A 'super' appears at the bottom of the screen which reads "1952" in order to set the chronological time. Only problem is, the Cadillac is a 1956 model. Any old car buff, particularly one like myself who writes a weekly column for the St. Louis Post-Dispatch, would know in a heartbeat that this car was four years ahead of the year indicated on the screen.Bruce Kunz, a.k.a. "The FIN MAN"tmwww.thefinman.com. (00:28:20 - 00:29:15)
Audio problem: The day after Operation Mardonius, when the first set of bombs explodes you first see the explosion and then hear it after a second, then as the last bombs explode you both see and hear the sound at the same time.