After the shootings in the bar are shown the first time, the exterior shot shows the traffic light at Madison Ave. In the later flashback, there is no traffic light.
When they show the bar shooting, when the woman, Hazel Tanis is shot, as she is going down you can see the actress is wearing knee pads. When Bello comes into the bar and looks at Tanis, she is no longer wearing the knee pad.
Carter is placed in the police car for his trial, his hands are cuffed behind his back but when exiting the car, his hands are cuffed in front of him.
When Lezra visits Rubin in prison and they are talking at the table, Rubin is shown holding a photo in his hands. The reverse shot shows Rubin with his hands clasped and the photo sitting on the table.
When Rubin places the Polaroid photograph into his book, he closes it so that he is looking at the cover. In the next shot, as he puts the book down, the cover is facing the floor and he is looking at the back.
Credits at the end of movie state that Rubin Carter is the only boxer to have received an honorary championship title belt from the World Boxing Council in 1993. This is incorrect as the boxer Joey Giardello also received an honorary championship belt at the same banquet in Las Vegas.
In the first featherweight fight sequence, the radio sportscaster pronounces the Pennsylvania city name, "Reading," as "reeding" (long "e" sound), but it is correctly pronounced as "reding" (short "e" sound).
The high school diploma Lesra Martin sends Rubin Carter is dated 29th June 1984. Lesra actually finished high school in 1983.
The guns on the Hurricane fighter are depicted as firing about 450 rounds a minute. The guns mounted on a Hurricane fighter actually fire over 1,000 rounds a minute.
When Carter's Federal Court victory is announced, jubilant inmates hurl waste paper from the cell decks to the floor below. In the background a huge pile of waste paper can be seen, the obvious residue of previous takes
The CLRV streetcar that whizzes by in the background when Lesra sends his first letter to Rubin Carter in Toronto, wasn't introduced to Toronto streets until 1979.
When Larsa, Lisa and the two Canadian men get out of a cab in downtown New York to meet with Ruben's Lawyers, the cab shows the starting fare as $2.00, the fare in the 1980s was $1.10.
Lesra Martin first wrote to Rubin Carter in 1980 and the reply is delivered in a Canada Post bag. The name Canada Post was not adopted until 1981.
Although the scene takes place in New Jersey, just before the car crashes, it passes a Shoppers Drug Mart advertising sign: SDM is a chain of drug stores found only in Canada.
The final scene looks like Foley Square - downtown NY with the New York City Hall in the background - not anyplace in New Jersey, where Sarokin would be sitting.