Sarah Michelle Gellar thinks she's too old to star in a Buffy the Vampire Slayer movie.

The 36-year-old actress, who played teen heroine Buffy Summers in the sci-fi TV series between 1997 and 2003, doesn't foresee her classic TV show spawning a movie spin-off like Veronica Mars as she worries she wouldn't be able to pull off the daring martial arts stunts now she's older.

"I'm a little old now. I feel like Buffy would have a wooden stake walker. I'm not quite sure how that would work," she said.

The Crazy Ones star also admits she has her reservations about a big-screen adaptation of the series as Buffy originally started out as a critically panned, camp 1992 horror movie starring Kristy Swanson. Buffy was [already] a movie. See, I think people forget that. Buffy was a movie first, and I don't know if you guys know this, but it didn't really work! I see you laughing at me over there, but it kind of didn't work. We spent our whole first year or two apologizing for the movie. So, I think it would be an incredibly different pressure," she explained.