The details about the 2007 Movie Release are pretty vague and the casting is still to be decided. That's most likely why the promo poster is so mysterious. I heard the names Sandra Bullock and Mischa Barton (The O.C.) as possibilities. You absolutely need someone who looks like they can seriously kick your ass.
I wonder if anyone considered Eva Mendez for that role. She's incredibly gorgeous and sexy, yet serious and tough. However, we have yet to see her carry a movie as the star. Also, people tend to think of Wonder Woman as the all American, Caucasian, black hair, blue eyed woman. God forbid she be a latina (even though Eva was born in Houston, TX). Perhaps we should reconsider what an American is?