#42: How the Grinch Stole Christmas
When we said that Jim Carrey didn’t go through all of that hair and make-up for nothing, we were being serious. In order to endure his hair and make-up, Carrey had to undergo CIA training. Sounds a little intense, right? He felt as if he was being “buried alive” each time.

Which makes sense if you are walking around all day in a suit of yak hair. Yeah, you know yaks? The animal? Well, Jim Carrey’s suit was a combination of both yak hair and spandex. The hair of course was died green and sewn to his bodysuit.