Amy Adams and Christian Bale
Allan Bregg/Splash News Online
03/22/2013 at 08:45 AM EDT
is known for losing weight
for films roles. But this time, the Batman hunk has packed on a few lbs. to play a '70s con man turned FBI guy in his next movie.
The Oscar winner, 39, was seen with greasy hair and a protruding belly on the Massachusetts set of the untitled film – quite a sight next to his gorgeous costar Amy Adams
It's a far cry from Bale's more chiseled days as the Caped Crusader, and even farther from his roles in The Fighter
and The Machinist
, for which he lost dramatic amounts of weight.
For The Machinist
, Bale lived on a diet of apples, coffee and cigarettes and lost a shocking 63 pounds – a full third of body weight.
In the upcoming David O. Russell film, Bale plays Melvin Weinberg, a con man turned FBI worker who directed the Abscam sting operation, which resulted in the conviction of several corrupt U.S. congressmen.