Joseph Gordon-Levitt

'Man of Steel' will feature a post-credits scene cameo from Joseph Gordon-Levitt who will introduce himself as the new Batman! That was the sexy rumor from late-2012 and the explanation for how Warner Bros. would kickstart the 'Justice League' buzz. Unfortunately it's not true.

Eight years after the release of the original, the sequel to 'Sin City' is officially on the way and casting big names left and right. Since much of 'Sin City: A Dame to Kill For' will take place prior to the first, that means we'll see the return of many characters who have no reason to still be breathing...including Bruce Willis' Detective Hartigan.

By now, every die-hard 'Batman' fan has heard the rumor that Joseph-Gordon Levitt will don the mask of the Dark Knight to fight crime alongside Henry Cavill's 'Superman' for the 'Justice League' movie that's set to premiere in 2015.

'Justice League' is coming out in 2015, which is already going to be one of the biggest summers for event films (between it, 'The Avengers 2' and 'Star Wars Episode 7'), but other than Henry Cavill rumored to appear as Superman none of the other cast has been fleshed out. The latest hot rumor is that Joseph Gordon-Levitt will play Batman, the Dark Knight himself.