Writer David E Kelley was a poor choice to lead the DC Comics adaptation, according to the Avengers director.
"I don't think that was a match. I just don't," Whedon told CraveOnline at the Toronto International Film Festival. "I don't think that he needs to write about superheroes.
"You need to need to write about superheroes to write about superheroes. If that's not in your vernacular, you may bring something new and interesting to it, but at the end of the day, if you don't have that burning desire to talk about these people who have these insane powers, then some other agenda is going to come forward and you might accidentally turn off the dark."
Allan Heinberg - who has written for The O.C. and Grey's Anatomy as well as Young Avengers and Wonder Woman comics - has been tipped to helm The CW's take on the heroine, titled Amazon.
Whedon himself was previously attached to a Wonder Woman movie that never went into production.