Continuity mistake: When Roy breaks his bat in the playoff game, the bat is a long way from the batter's box; the "Wonderboy" fragment is lying further away from the foul line than the rest of the bat, and the fragment "point" faces away from the foul line, the top of the bat on both parts face the line. However, in the close-up, the fragment is facing the other way, with the point facing the foul line. Note, too, that when Hobbs hits the ball, the bat is not split. (02:09:10)
Continuity mistake: At the beginning of the film, the young Roy breaks a board of the hen-house wall with a pitch. When the shot cuts back to the hen-house wall a moment later, the hole is a different shape and in a different place.