Former Mad Men star Jon Hamm</a> has his sights on stealing Ben Affleck</a>’s Batmobile to become the Dark Knight, a source claims!<br /><br />“Jon’s gunning hard for the role,” a source revealed.<br /><br />Though the two have been pals since co-starring in Affleck’s 2010 film The Town , the coveted comic book character may be up for grabs — and Hamm is wanting in!<br /><br />“They enjoyed working together and have been on good terms ever since,” the source said.<br /><br />“But Jon knows Ben has faced some criticism over Batman v Superman and Justice League</a>, and frankly thinks he’d be better suited for the job. This is business for Jon — not personal.”<br /><br />While Affleck, 45, is still the one answering the Bat-Signal, things are likely to change.<br /><br />“Of course, Ben’s not officially out of the role yet,” said the source, “but the writing’s on the wall, and Jon’s desperate for the gig — friend or not.”<br /><br />Since Affleck’s split</a> from Jennifer Garner</a>, his struggles with substance abuse have been making headlines and he hasn’t committed to future Batman projects.<br /><br />Hamm, 46, is ready to fly in and has been “carefully courting” director Matt Reeves for months.<br /><br />“Matt thinks Jon is charming and was a big fan of Mad Men, so it seems like a great transition to him,” the source said.<br /><br />“Jake Gyllenhaal</a> has also been chasing the role, and Matt has definitely been considering him. But Jon is closer to Ben’s age and look, and will be a smoother replacement to fit into the plans already in place.”<br /><br />While Affleck’s career stalled with going to rehab this year, Hamm’s star continues to rise with his recent hit film Baby Driver.<br /><br />“An iconic part like this would take his career to the next level. He doesn’t care whose toes he has to tread on to get there,” claimed the source.<br /><br /> <br /><br />