Factual error: In one game the camera pans to Herb and behind him we can see a man wearing an Under Armor hat. Under Armor didn't come out until 1996.
Factual error: One sweep through the town shows a Dodge Durango in a parking lot. The movie takes place in 1988; the first Dodge Durango was the 1998 model, ten years later. (00:34:15)
Factual error: Peter and Lizzie play their semi-finals on the same day, but the men's semis are the day after the women's at Wimbledon (unless there has been significant rain, which there wasn't).
Factual error: The stadium in the opening scene was not around in 1995. The first game played in that stadium was 2001.
Factual error: When Steve the Pirate is walking down the street in Vegas and gets hit with a drink, behind the truck you see Binions Horseshoe Casino. Binions is on Fremont street, and that is closed to traffic. (01:02:35)
Factual error: It is said Maggie can't breathe on her own after her injury. If this was the case she wouldn't be able to speak, since she can't push air out of her lungs to generate sound.
Factual error: At the end of the movie, after losing the 1954 Boston marathon, Father Hibbert asks Ralph what his running plans are for the future. Ralph replies that the Olympics are next year and he plans on winning them. The next Olympics were in 1956, not 1955.