Dean Roll isn't afraid to take on the big boys. Hell, he's been body-slammed, clotheslined and suplexed by the best of 'em, so there's no way he's backing down from a fight with a pencil-necked Hollywood movie studio.

Roll has wrestled in the U.S. and abroad under the name Shark Boy for more than eight years, so he was shocked when he started seeing posters for "Spy Kids" director Robert Rodriguez's adventure flick, "The Adventures of Shark Boy and Lava Girl in 3-D," which opens Friday.

Fearing that his fans would confuse his character with the one played by a kid in the PG movie, the Middletown, Ohio, resident filed a trademark-infringement lawsuit in an Ohio federal court on Tuesday and asked that Rodriguez and Dimension Films immediately stop using the Shark Boy name in their movie.

"I've seen trailers for the movie and so has my 4-year-old son, and he's excited about seeing it, so what he says goes, which is, of course, frustrating on several levels," said Roll, 30, who received the Shark Boy trademark for entertainment and sports purposes in 2000.

At only 5'10" and 180 pounds, Roll's Shark Boy is a scrappy underdog who, he said, has connected with fans of all ages and earned him a better-than-average living for a professional wrestler thanks to sales of Shark Boy merchandise on his Web site, SharkBoy.net. "I go to Orlando [Florida] for tapings of the [Total Nonstop Action Wrestling] show every couple weeks, and I go all over the country and the world as Shark Boy," said Roll, who is a stay-at-home dad between gigs.

His character's look — which includes a mask with a fin and shark's teeth and a blue shirt with a shark on it — was modeled on masked Mexican wrestlers, but the name was inspired by a 1995 song by the Toadies, "I Come From the Water."

"I thought it would be cool to come up with a superhero kind of comic-book character from the water who fights bad guys," he said. Unlike so many of today's smack-talking wrestlers, Shark Boy — who began life as El Pirahno — doesn't speak.

Roll's lawyer said in addition to asking for an injunction to stop the use of the name, the suit seeks unspecified monetary damages. "Mr. Roll has been working on this character for eight years and he feels as though his property rights have been infringed on," attorney Thomas J. Intili said. Dimension/Miramax has until July 1 to respond to the suit.

A spokesperson for Dimension's parent company, Miramax Films, said the company does not generally comment on pending litigation. "We haven't seen the complaint, but based on what we've read, we are highly confident that there is no merit to this claim," Sarah Levinson said.

Rodriguez's movie, which was inspired by an idea from his 8-year-old son, Racer, stars David Arquette, Kristin Davis, George Lopez and newcomers Taylor Dooley as Lava Girl and Taylor Lautner as Shark Boy. The movie follows the adventures of Max (Cayden Boyd), a 10-year-old misfit who retreats into an imaginary world in which he helps the superhero kid duo to defeat a pair of evildoers who are trying to rid the world of dreams.

Check out everything we've got on "The Adventures of Shark Boy and Lava Girl in 3-D."

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