'Mortal Instruments' Stunt Training Was 'Brutal' According To Kevin Zegers

Any Shadowhunter worth his black would never be caught dead using a stunt double while destroying dastardly demons, and so it was that the actors portraying badass Nephilim in the big-screen adaptation of Cassandra Clare's "Mortal Instruments" underwent weeks of grueling training to pull off all those jumps, kicks and flips.

When we caught up with star Kevin Zegers recently at WonderCon, he explained the process of getting into top physical condition to portray Alec Lightwood.

"I think I showed up about four weeks before we started, and it went through filming, so then on lunch break we would go and rehearse the fight sequences," he said of the rigorous preparation. "[Director] Harald [Zwart] wanted us to do our own stuff, which I think when you watch the movie you can tell. It's sort of great, and you can see that it's us, and it's violence and just as, like, a guy, I saw the new trailer and it looks awesome. It looks like a big action movie, also obviously, the love story and everything are going on and the fantasy stuff. The action stuff looks awesome."

But, embodying a physically superior Shadowhunter came with a price for the 28-year-old.

"Brutal," he said with a laugh of the regimen. "I'm like the old one of the group. The young twenties kids were very spry and bounced back. When we finished I was very tired."

"The Mortal Instruments: City of Bones" hits theaters August 23, 2013.

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