Revealing mistake: Obvious stuntman in a flame resistant suit when Eric's on fire.
Revealing mistake: The time on the scoreboard clock when Ray hears the "go the distance" message changes from 10:30 to 10:32 in a matter of seconds.
Revealing mistake: Near the end of the movie, when Wallace says: "hold tight lad, and think of Lancashire hotpot" one picture of a sheep on the ceiling slightly moves a few times. (00:19:57)
Revealing mistake: When Nick cuts in half Tex, if you see closely the hair of Tex changes length showing the stuntman.