Ben Affleck has been taking the process of "bulking up" for his role as the new Batman so seriously that a costume designer on his current film felt duty bound to request he slow things down.
The Oscar-winning film-maker is currently shooting the David Fincher thriller Gone Girl, which requires a rather more slimmed-down physique than the muscle-bound caped crusader. But with Affleck due to begin shooting superhero sequel Man of Steel 2 – dubbed "Batman v Superman" – in a matter of months, he has apparently been getting into shape a little too early.
"I'm trying to keep him at the size he's at right now until he's done with us," Gone Girl costume designer Trish Summerville told E! Online. "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."
Summerville hinted that Affleck would eventually make for a seriously beefy Batman. "He's a really big guy, like he's quite tall," she said. "You don't realise how big he is. He kind of reads smaller on film than he does in real life."
Gone Girl stars Affleck opposite Rosamund Pike, Tyler Perry and Neil Patrick Harris in the story of a former journalist who may or may not have killed his wife. It is based on the acclaimed, bestselling novel by Gillian Flynn.
Affleck was revealed as the surprise new Batman last month and will go head to head with Britain's Henry Cavill in Zack Snyder's film, which is due out in 2015. The new caped crusader is said to be a "tired and weary" version of the character.
It is thought Affleck has signed on for multiple movies and may even take charge of the cameras for a future Batman film. Studio Warner Bros plans a Justice League film featuring Superman alongside Batman, Wonder Woman and various lesser-known heroes once Man of Steel 2 is out of the way.
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