Continuity mistake: In the 1924 Olympics, the Eric Liddell character is handed a slip of paper prior to running. As he runs in the race, the paper is not in his hand. When he crosses the finish line it magically reappears.
Continuity mistake: Harry pulls a bat out of his car trunk which becomes yellow, shorter, and bounces, likely made out of foam, then it turns back to normal when demanding money from one of two thugs he's nailed.
Continuity mistake: Before the start of the match, the teams line up and acknowledges the spectators. In the number 7 shirt for the Allies is John Wark, yet at the start of the second half, the same player is wearing a red track suit and sitting on the reserves bench. At no point was he injured or replaced.