Stargate Atlantis‘s David Hewlett has a role in this summer’s Rise of the Planet of the Apes feature film, starring James Franco, Frieda Pinto, Andy Serkis and John Lithgow. With the film under a shroud of non-disclosure agreements, his role has been something of a mystery — until now.

Watch David go all angry and get his ass kicked by CG ape Caeser (Serkis) in this extended preview clip from the film!

“The reason I was drawn to it and attracted to it — outside of the nerd factor — was the story,” Hewlett told GateWorld earlier this year (story). “At its core, it’s a story about family, and I love that. I’m so sick of going to the movies and being like, ‘That was so gorgeous, but the plot … meh.’ This has a real story and a real plot and real characters you can care about.”

Hewlett previously played Dr. Rodney McKay on Stargate Atlantis.

Rise of the Planet of the Apes is directed by Rupert Wyatt, and opens August 5 in the U.S. and August 11 in the U.K. Check out the movie’s official Web site.

(Thanks to Dan for the tip!)