Well there's your proof, new Batman in the works and Megan Fox as Catwoman (The Sun - seemingly the source).
The Press Association
Megan Fox has apparently signed up to play Catwoman in the next Batman film.
The Transformers sex symbol will thrill fans by donning a tight PVC catsuit to play Selina Kyle in director Christopher Nolan's next instalment about the comic book hero, The Sun reports.
Megan, 23, follows in the footsteps of Michelle Pfeiffer, who played Catwoman in Batman Returns, and Halle Berry, who played the vixen in flop spin-off movie Catwoman.
Christian Bale will return as millionaire Bruce Wayne/the Caped Crusader and Sir Michael Caine will be back as his faithful butler Alfred.
Filming is due to begin next year with the movie expected to hit screens in 2011.
I'm not sure what I feel about this one. Never been convinced she can act so great, although I have no doubt she'll be one of the better looking "Catwomen".
EDIT: Sources seem to be echoing the Sun as the source, I had originally seen it on Fox News, therefore legitimacy is a little hazy at the moment. This will no doubt be addressed soon.