Would be perfect for bad-vamp Riley, writer says

"Fighting" star Channing Tatum may be brawling with the undead next.

Melissa Rosenberg, the writer behind the movie version of "Twilight" and "New Moon" sequel "Eclipse," told E! Online's Marc Malkin she wants Tatum to play Riley.

For the uninitiated, Riley's a newborn vampire created as part of an army to take on human heroine Bella Swan.

"And there are some complexities to that character," Rosenberg told Malkin. "He really is tragic. He's a puppet for Victoria [bad-girl vampire played by Rachelle Lefevre]. So he has to break your heart a little bit at the end when he realizes that she doesn't want him. Channing could do that beautifully."