Continuity: During the opening day game, the angle of the shadows changes drastically between shots.

Continuity: In spring training, when Lou Brown, the manager, and another coach (the pitching coach?) check out what kind of stuff Charlie Vaughn (Sheen's character) has, they walk over from the third base side of the field to stand on either side of the catcher, and there is no wooden sign on the backstop. When Vaughn pitches, he throws a fastball between the two coaches that shatters a "No Pepper" sign on the backstop.

Factual error: In the ball park the sign for NBC says channel 4. In Cleveland, NBC was and still is on channel 3.

Factual error: In the scene before the one game playoff Bob Uecker states that the Indians are going for their first league championship in over 30 years. In reality the win gives them a division championship and not a league championship. (Time)