Buffy - Whedon: 'i'm Not Directing Fourth X-men Movie.... Buffy The Vampire Slayer creator Joss Whedon has played down reports linking him with the fourth installment of the X-Men movies.Whedon, who had talks with Marvel Studios over the third movie X3 - was set to film the big screen version of Wonder Woman instead, but left the project over creative differences.He says, "I haven't heard anything about X-4. I had been talking with (Marvel Studios) about X3, but the dates didn't line up. So I took on Wonder Woman, and that worked out great. Oh, no wait, I remember now, not so much!."