When I grabbed a few minutes with Nathan Fillion at the World Premiere of Universal Pictures' "The 40 Year Old Virgin," the star of the upcoming movies "Slither" and "Serenity" proved once again that he's a fun interview.

A serious discussion of his upcoming films was definitely not on the agenda as Fillion let me in on who he thinks Joss Whedon should choose to play Wonder Woman, how he feels about the choice of the name "Slither," and whether we'll see him naked (as we did in "Firefly") in "Serenity:"

Nathan Fillion Interview - Play the Video