15. The Hobbit: The Desolation of Smaug.
For all the CGI Peter Jackson used in his Hobbit films, you’d think some fish would be easy to fake. But for the Laketown scene in which the dwarves hide in barrels, the actors had to be covered in real fish. Adam Brown, who played Ori, actually has a phobia of fish, so he wasn’t very happy about being covered head-to-toe in their juices.