Back in 1980, movie lovers were stunned when they saw Robert De Niro’s amazing body transformation in Scorsese’s Raging Bull. How did he do that?? Let’s take a look at the most impressive physical makeovers by actors in recent film history. Tip: also check out Muzul’s richest celebrities of 2015.

Jake Gyllenhaal

You can’t blame Jake Gyllenhaal a lack of dedication: first he lost 30 pounds in order to play a sociopath scoop hunter in Nightcrawler (2014), after which he gained 45 pounds for his role in upcoming boxing drama Southpaw.