Trivia: The Red Sox were originally scripted to lose the World Series. After the Sox actually did win the Series, the ending was changed.
Trivia: The man who at the end announces that Jimmy Braddock is the winner is actually the Director's (Ron Howard) Father.
Trivia: The free-kick goal scored by Santiago (actor) against Liverpool in the movie was actually scored by the real Newcastle United player Laurent Robert in the real game against Liverpool which won them the game 1-0.
Trivia: When Crazy Dave is putting the chain on Herbie at his yard, Herbie squirts oil all over his foot. This is a reference to the 1968 film "The Love Bug", in which Herbie did exactly the same thing to Thorndyke (David Tomlinson).
Trivia: Buttermaker gets a gentleman's club for the team's sponsor but one of the many sponsors he looks into first is Chico's Bail Bonds which was the team sponsor in the 1976 version of the movie.