The Hangover star Ed Helms had to convince his co-stars on The Office he wasn't drunk while he was making the movie because he spoke with a slight slur.

The actor removed an implanted tooth when he learned his character in the hit comedy film would have dental issues and he had no idea the procedure would affect his speech.

He tells The Hollywood Reporter, "(My dentist) made me a flipper with the false tooth on it that I could take in and out because I was still shooting on The Office.

"I never told (anyone) because they would lose their minds. So I would show up for work (on The Office) with this appliance in my mouth, and it really affected my speech. If you watch those episodes, I sound drunk."