Someone for a role, someone for a lifestyle change - many Hollywood actors have some of the most impressive body transformation changes. For example, Zac Efron had a shocking change for the movie "Baywatch", in which he had to be definitely in good physical shape. Chriss Pratt lost about 27 pounds in 6 months. Find out below how they looked before and how they look now, some of your favorite actors.
1. Zac Efron
2. Chris Pratt
3. Paul Rudd
4. Mark Wahlberg
5. Chris Evans
6. Ryan Reynolds
7. Kevin Hart
8. Jake Gyllenhaal
9. Hugh Jackman
10. JK Simmons
11. Seth Rogen
12. Jonah Hill