Continuity mistake: In the opening scene, Jeremy falls and is clinging to a cliff face. In the close-ups, he's holding onto fairly solid grey rocks. In all the long shots, however, his stunt man/double is precariously perched on crumbling brown dirt. (00:01:00)
Revealing mistake: Both stunt double's faces are plainly visible in the fight between Jeremy and Rafe. (00:26:10)