Rumor has it that the next big screen Batman won't be a twenty or thirty-something just starting out in his superhero career, but rather "a grizzled veteran who has been on the job, if you will, for several years."

Jon Hamm, Jim Caviezel, and Josh Brolin.

Batman-on-Film claims that multiple sources have told them Warner Bros. is looking at actors in their 40s to play the Dark Knight Detective in Batman vs. Superman/Man of Steel 2 or whatever the team-up film ends up being titled.BoF says "fans should start thinking about dudes who are a very good actors and are in their 40s, like… Josh Duhamel, Jude Law, Gerard Butler, Josh Brolin, Jon Hamm, Brad Pitt, Ben Affleck, Jim Caviezel, etc."Affleck is Warner Bros.' golden boy, but is pretty committed to directing now and has already reportedly passed on directing the studio's JLA movie. Also, he's said more than once how burned he felt by his involvement with Daredevil.Caviezel currently stars on Person of Interest, which just so happens to be produced by Christopher Nolan's brother Jonathan.Brolin has also made a few films for Warners, including this year's Gangster Squad.Gerard Butler starred in 300 for Warners and has been on a comeback thanks to this year's sleeper hit Olympus Has Fallen.Jon Hamm starred in The Town for Affleck and Warners, and the Mad Men star has often been named a fan favorite for different superhero roles.Duhamel starred in the first three Transformers films, while Brad Pitt is, well, Brad Pitt. 'Nuff said.

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Jude Law is an interesting prospect because he already co-starred in Warners' Sherlock Holmes franchise, and he was a frontrunner to play Superman in the Batman vs. Superman film that Wolfgang Petersen almost directed a decade ago. Colin Farrell was the top choice to play Batman then. Law is also a big comic book fan who reportedly sports a tattoo of Rorschach from Watchmen.If this rumor pans out then what do you think of a middle-aged veteran Batman going toe-to-toe with a younger Superman? Sound off in the Comments below!