Revealing mistake: When Elizabeth returns to St. Benedict's after 25 years she hasn't aged a bit. (01:04:10)
Character mistake: Throughout the whole movie Bell is left-handed taking tests, throwing baseballs, and everything that he does. As an adult he's right-handed.
Plot hole: When Hundert hits the ball into the window of Mr. Woodbridge's car he keeps standing there for a moment with the club in his hand while the boys run away. Woodbridge looks in his direction and should have seen him, however, he starts asking around who the culprit was. (00:44:20)