1. Fast forward to about 45 minutes into the movie, to the scene in which a little league game is being played.
2. Watch the slammer a kid hits to center field just after a parent in the audience makes a crack about how terrible the team is to the coach (Steve Martin).
3. The outfielder will *pretend* to catch the ball. However, if you watch the bottom of the screen, you will see the ball dribble along the ground next to the fielder.
4. As the ball does this, the fielder throws a ball that was hidden in his mitt, completely ignoring the *real* ball.