Southpaw isn't getting as much hype as it should be, but just so you know, this is how Jake Gyllenhaal looks like now for the movie: super freaking ripped. So how did he do it? There's a behind the scenes look at the kind of insane training he had to undergo.

So, so ripped.


Gyllenhaal said:

“I knew nothing about boxing when I started really, and I knew that in order for me to pull it off in any way, I was just gonna have to learn to do it,” the actor, 34, says. “And when I set my mind to something I just won’t stop until I do it. It’s something I pride myself on, and it’s something I hate about myself.”

Watch the trailer below:

Here's another video: