Hollywood Daredevils: Hugh Jackman, Jason Momoa, Shia LaBeouf

01 of 09

JASON MOMOA

The Conan the Barbarian star buffed up and endured grueling six-hour daily workouts to play the fierce warrior. "We do two hours of sword work first ... then have a little break, eat a broiled chicken, do two hours of weight lifting and have cardio," Momoa told reporters at San Diego Comic-Con.

02 of 09

GEORGE CLOONEY

The perennial bachelor always keeps it cool – even coasting on the high seas! A resident of Lake Como, Italy, Clooney is known for having a boat-load of adventures entertaining A-list shipmates like Cindy Crawford and Evan Rachel Wood.

03 of 09

SHIA LABEOUF

The Transformers: Dark of the Moon star performed his own stunts for the blockbuster flick, alongside model costar Rosie Huntington-Whiteley. "There's all these people looking who don't know we're filming, and they're yelling, 'Don't jump!'" he revealed to PEOPLE of his on-set daredevil moves.

04 of 09

HUGH JACKMAN

While preparing for his heroic role in Real Steel, the Aussie actor spent time trading blows with boxing legend Sugar Ray Leonard. "After a few takes, he got it. You see it: the veins in his arms, the intensity. The punch had emotion," Sugar Ray told EW of teaching the actor on how to really pack a punch.

05 of 09

PRINCE HARRY

The patriotic royal has bravely fought on the front lines in both Iraq and Afghanistan. Now stationed in California for rigorous Apache helicopter training, the British Army soldier has said serving in Afghanistan in 2008 gave him "the chance to do the soldiering I wanted to do from ever since I joined."

06 of 09

JUSTIN THEROUX

Jennifer Aniston's leather-clad beau has a need for speed! The write-actor is an avid motorcyclist who calls riding a form of meditation. "They call it the poor man's therapy, and it's true, because you can’t focus on anything other than what you’re doing: driving," he told the New York Times.

07 of 09

JEREMY RENNER

The Oscar nominee trained extensively to embrace the physical demands of playing super-sniper Hawkeye in 2012's The Avengers. "I did a lot of fighting, Muy Thai, and archery, the whole gamut," Renner told The Hollywood Reporter. "It was fun!"

08 of 09

ENRIQUE IGLESIAS

Must love dogs and high-seas adventures! The crooner looked like Aquaman flying through the Miami surf on a Jet-Ski with his German shepherd, Lucas, on his lap in September.

09 of 09

GERARD BUTLER

The great Scot took a victory lap after showing off his sweet soccer moves at a charity game in August, where the Celtic football team dominated Manchester United, 5-2. "I can kick a ball around, but I am certainly not bending it like Beckham," the modest actor tells PEOPLE.