Ben Affleck may be bulking up for his Batman vs. Superman role a bit too soon. The actor is currently shooting a David Fincher movie titled Gone Girl but he knows he has to be in top shape by February, when the Man of Steel sequel begins filming in Detroit.

Gone Girl costume designer Trish Summerville told E! Online that she wishes he’d slow down a bit at the gym:

I’m trying to keep him at the size he’s at right now until he’s done with us. I’m sure he’s working out but I think for him, he’s probably a guy that builds up really quickly so I just kind of asked him if he can stay where he’s at right now. He’s a really big guy, like he’s quite tall. You don’t realize how big he is. He kind of reads smaller on film than he does in real life.

Ben Affleck is about 6′ 4″ and will be the most physically imposing Batman we’ve seen on screen so far. Affleck’s Batman will be going toe-to-toe with Henry Cavill’s Superman when Zack Snyder’s untitled Man of Steel sequel hits theaters on July 17th, 2015.

SOURCE: E! Online