Neil Patrick Harris would be totally down to play a Batman villain

Batman and Superman may be fighting each other next March, but eventually they'll have to fight some villains. And if Twitter has its way, one of those villains might be played by Neil Patrick Harris.

Responding to a Twitter question about whether or not he would play the Riddler in an upcoming Batman movie if given the chance, NPH was totally on board to potentially reunite with his Gone Girl co-star Ben Affleck (although he had one condition):

He's referring to that infamous scene in Gone Girl where audiences get a small flash of a certain part of Affleck's anatomy. But the Batfleck and the Riddler would probably keep those costumes on. And why would you want to take off something like this?