Visible crew/equipment: When the characters walk through the snowy woods, just before reaching the cave, Colhoun kicks a patch of snow that seems to fold in half, as though it is a towel or blanket.

Factual error: The film takes place around 1830, but you can see a character using a Colt Navy 1851, which was made 21 years later actually.

Factual error: The American Flags being flown have the 13 stripes and 50 state stars. This is 1847 so only 29 stars should be shown on the flags.

Continuity: When Guy Pierce is offered a nut by Jeffrey Jones, Jeffrey Jones picks up a book in order to smash the nuts. When the book is first seen, the spine of the book is in his right hand. After smashing the nuts, the spine is in his left hand. Then when he goes to replace the book on the shelf, the spine in now back in right hand.