Sarah Michelle Gellar is currently promoting her new comedy show with Robin Williams, which will start airing this fall, and she has been discussing her previous television shows.

Sarah Michelle Gellar at the Tribeca film festival
One such show, which Sarah is best known for, is Buffy The Vampire Slayer. Buffy is truly considered a cult classic and ran for seven years before it was finally cancelled, and it cemented both Sarah and creator/writer Joss Whedon in pop culture history. However, although there's been talk of a Buffy movie for the past ten years, nobody could ever agree on whether it was just a rumor or the film was actually in development.
When Sarah is officially asked about a possibly Buffy film, she says, "Joss [Whedon] and I always talk about [a movie]. But the thing with Buffy is that Buffy was a movie, and it ultimately didn’t work as a film. And I mean, we had such miles to overcome when we were trying to do a TV show based on a movie. And one of the reasons is that the story works better over time. If there was ever the right story, we would do it. At this point, the stake would be my walker and I would be hobbling in."

The cast of Buffy the Vampire Slayer
Sarah most recently did voice work on 'Robot Chicken' and 'The Simpsons', and she will next be seen in The Crazy Ones with Robin Williams in the fall.
Interview with Sarah Michelle Gellar and Joss Whedon