Happy Divergent Day! The film's fight coordinator, J.J. Perry, was given a mission: whip six Hollywood actors into kick-ass shape, so they don't huff-and-puff while sprinting, punching and throwing knives onscreen. His deadline? Five weeks. Here's how he did it—and how you can steal his fitness tricks.

Click here for SELF's five-step guide to passing Dauntless initiation.

More on SELF.com:

Angelina Jolie And Stella McCartney Are Launching A Line Of Maleficent-Inspired Children's Clothes

From our partners: