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Go Joe! G.I. Joe: Retaliation explodes into theaters March 29, and new Joe team member Dwayne Johnson is giving ET details on the movie co-starring Channing Tatum and Bruce Willis!

Video: ET Exclusive: 'G.I. Joe 2' Set Visit

Of his new character Roadblock, Dwayne tells ET's Christina McLarty with his trademark grin, "He is great at what he does. He's incredibly proficient. He emerges as the leader of the G.I. Joes, knows how to fight better than anybody on the planet, kicks a lot of butt -- and he's incredibly handsome."

G.I. Joe: Retaliation finds the Joes not only fighting their mortal enemy Cobra, but forced to contend with threats from within the government that jeopardize their very existence. Is the President of the United States real, or an impostor?

Video: Dwayne Johnson Battles Ruthless Cartel in 'Snitch'

Also starring D.J. Cotrona, Byung-hun Lee, Adrianne Palicki, Ray Park, Jonathan Pryce and Ray Stevenson, the film promises some eye-popping fight choreography and musical choices by director Jon M. Chu (Justin Bieber: Never Say Never, Step Up 2: The Streets).

Video: Video: Dwayne Johnson's 'Million-Dollar Smile'

Watch the video to see who Dwayne's dream leading lady would be, and if he'd consider doing a Magic Mike prequel with Channing!

"Yeah, it's called Getting Down and Dirty with Dwayne," jokes the star.