Factual error: When they show an overhead shot of the stadium (Candlestick Park), it is of a football game. Yet the film is about baseball.
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Mistakes
The point is made a couple of times in the movie that Bobby Rayburn is playing centerfield for the Giants and moving Juan Primo to LEFT field. But on Opening Day, when Rayburn and Primo collide in the outfield trying to catch a fly ball, Rayburn's moving to his left while Primo's moving to his right, indicating that Primo was playing RIGHT field. See more...
The Fan mistakes
Continuity: The point is made a couple of times in the movie that Bobby Rayburn is playing centerfield for the Giants and moving Juan Primo to LEFT field. But on Opening Day, when Rayburn and Primo collide in the outfield trying to catch a fly ball, Rayburn's moving to his left while Primo's moving to his right, indicating that Primo was playing RIGHT field.
Continuity: At one point Snipes jumps into the ocean to save his son, and when it shows a close-up on his face, you can tell it's not him. It's a pretty weak stunt double.