The Insane Body Transformations These Actors Went Through For Their Roles

Move Move Move Your Feet

At 29 years of age, Portman shaved off 20 pounds to play Nina in Black Swan. Portman remembers that, in the heat of her training and extreme dieting, there were nights that she genuinely thought that she was going to die.

The More You Know

Because they were shooting in black and white and color didn't matter, they used chocolate syrup as blood when shooting Psycho.
To thank Robin Williams for his work on Aladdin, Disney sent him a late Pablo Picasso painting.
John Travolta would have played Maverick in Top Gun if his asking price wasn't too high.
The skeletons in "Poltergeist" are not props. They are real human skeletons.

Post originally appeared on Upbeat News.