Continuity: Many baseball scenes were clearly pieced together from different clips. Near the beginning, the Giants are at bat and the Braves are pitching, but the catcher is wearing a Colorado Rockies uniform. The Giants wear road uniforms at home numerous times. A few overhead shots show a football game at Candlestick Park. One scene shows fans in the seats at Candlestick Park, but the next shot is at Coors Field in Colorado.
Continuity: When Bobby Rayburn and Juan Primo collide at the beginning, Primo, who was in left field, runs in from right field.
Errors made by characters (possibly deliberate errors by the filmmakers): At the beginning of Juan Primo's musical montage, the announcer introduces him as "Number 11, the right fielder, Juan Primo." But it was established earlier in the film that Primo played left field.
Continuity: The hair that Gil shaves off to demonstrate the knife grows back in minutes.
Factual errors: Major League Baseball rules do not allow scoreboard displays to show moving images during play.
Incorrectly regarded as goofs: The San Francisco Giants' number 11 is retired (Carl Hubbell). Undoubtedly the producers chose this number as to not offend the owner of a number that is still in regular use.
Continuity: The San Francisco hat that Gil/Curly tries on (and ultimately keeps) whilst playing pool with Bobby Rayburn, is different to the hat worn in the following and final scenes.
Audio/visual unsynchronized: In the last scene when Bobby is hitting in the pouring rain, the baseball announcer repeatedly refers to the pitcher as "Martinez". However, the name on the pitcher's uniform is clearly not "Martinez".
Continuity: Bobby gives his son, Sean, a puppy early in the film. Less than six months later, the puppy is fully grown.
Factual errors: The day before the season begins, Rayburn is surprised that the Giants assigned him number 33. MLB teams assign uniform numbers before Spring Training, so Rayburn should have known about his new number for months.
Factual errors: In the opening day game, the announcer says "Now leading off for the Giants, Lanz." He hits a foul ball, then Gil decides to go. Lanz swings at the next pitch and hits one deep to the outfield. Gil runs back to his son and asks him what he missed. His son says that he hit one deep and the bases are now loaded. This is again proved true when Rayburn hits a grand slam his at bat (he batted after Lanz). If Lanz was the first batter and got a hit, there would be only one man on base, not three, thus making a grand slam impossible.
Factual errors: Several times, the announcer says "Now batting, Bobby Rayburn", and Rayburn gets off the bench to approach home plate and begin the at-bat. In a real baseball game, he would come from the "On-Deck" circle as he was announced.
Revealing mistakes: In the scene involving Robert De Niro's character going into the sea to rescue Rayburn's son, you clearly can see both stand-ins for De Niro and Snipes.
Continuity: When Curly goes to Rayburn's home and is drinking a beer in the kitchen, Rayburn invites him to play pool and says, bring your beer. In the kitchen, it's a bottle, in the pool room, it's a can.
Continuity: The hat changes when Curly steals the car and visits Coop. The exterior of the house in no way matches the interior either.
Continuity: When Rayburn collides with Primo, Rayburn's lucky #11 necklace breaks - both the pendant and the chain are shown on the grass. Later, when Rayburn goes to bat he feels for the lucky pendant - the pendant is missing but the chain is intact around his neck.