Continuity mistake: When the bobsled team is getting their act together in Calgary, there's a scene of them pushing off with an unpainted bobsled. In the shots of the feet of the guys pushing at the back of the sled, you can see that the lower back of the sled is painted black with green stripes, the colours that they paint the sled in a scene a few minutes later.
Continuity mistake: In the scene that takes place right before the big game with Georgia Tech (the game Rudy plays in), the stadium shows the Penn State Blue Band on the field playing the Penn State fight song. The game then starts and Notre Dame is playing Georgia tech. (01:39:20 - 01:41:00)
Continuity mistake: When Smalls tries to throw the ball for the first time, everyone laughs at him and falls down. When it shows the guys from Smalls' view, it shows Yeah-Yeah falling down. Then when Smalls is running away, it shows Yeah-Yeah falling again.
Continuity mistake: In the big game the Cubs' manager says to Chet, "You gave me six great innings." But somehow, Henry pitches four innings when there are no extra innings in the game. How unusual.
Continuity mistake: When Joe, the Heisman candidate quarterback, jumps his Harley off of a dirt cliff, one camera angle is from below as the bike is in the air. The angle clearly shows the bike is different from the Harley he started and finished with. Most noticeable is the fact that the tyres on the stunt bike are knobby enduro tyres, but later when the bike is stopped, you can see the smooth street tyres are back again.