8 Stars Who Underwent Dramatic Transformations for a Movie Role

For his role in the biographical drama film Chapter 27 (2007), Leto had to gain 67 pounds to get into his character, Mark Chapman – the man who killed John Lennon.

He said that he managed to gain weight by drinking microwaved pints of ice cream mixed with olive oil and soy sauce. Unfortunately, after playing this role, he ended up with gout – a form of arthritis.

Here are 7 Ordinary Things That Have Changed Immensely Through History.