The life of an actor is not all glamorous awards ceremonies and schmoozing with the right people... there's a lot of hard work and daily grind that goes into the movies we love!
As a movie fan, you've seen a whole bunch of incredible actor transformations for demanding movie roles - can you name which films these incredible physical changes were for?
1. Which movie did Christian Bale lose 63lbs for?
2. Which film saw Chris Pratt shape up and drop 65lbs?
3. 47lb less, Matthew McConaughey got seriously skinny for this role!
4. Anne Hathaway lost 10lb in three weeks, and another 15lb during shooting for this film...
5. Colin Farrel lost a ton of weight for this movie!
6. Charlize Theron put on 30lbs and prosthetic teeth for this role.
7. 50 Cent dropped 54lbs and became almost unrecognizable for this movie...
8. Russell Crowe piled on 63lbs for this movie...
9. Jared Leto got 67lbs heavier... for which movie?
10. Which movie did Matthew Fox drop 44lbs for?