123Movies. Sure, the Nitro Circus isn't a real circus. But that doesn't stop this reel of hard-core motocross stunts from being one of the greatest shows on earth, a chance to bask in the insanity that only the Nitro crew can bring. In addition to ringleader Travis Pastrana, featured motocross daredevils include Gregg Godfrey, Andy Bell, "Cowboy" Kenny Bartram and Ronnie Renner.