Revealing mistake: When the cannibal throws Porter's body on the table you can plainly see its a rubber body. Especially when he cuts off the head.
Wrong Turn 4 (2011)
1 revealing mistake - chronological order
Directed by: Declan O'Brien
Starring: Kaitlyn Leeb, Jennifer Pudavick, Tenika Davis, Terra Vnesa
Visible crew/equipment: Near the beginning of the film, where the group are getting ready to go snowmobiling, Kenia and Sara start talking about Porter. During this conversation, a boom mic and pole are reflected in the window of the car directly behind Kenia. (00:13:50)
Kyle: They're eating him alive like some fucked up fondue.