Shia LaBeouf

The 37-year-old actor annoyed the cast and crew on the set of World War II movie 'Fury' - which included Brad Pitt and David Ayer - by taking his method acting techniques way too far.

Shia was determined to know what life in the trenches was like for the soldiers who fought, so he stopped showering for weeks and even pulled out one of his teeth!

A source told the Daily Mail newspaper: "He pulled out his own tooth during the first few weeks of filming and then refused to shower for weeks on end so he could better understand how his character would have felt living in the trenches."