John Cusack is making no apologies for looking chubby in new movie THE ICE HARVEST - he gobbled down pizza to stay warm on the freezing Illinois set.

The movie star admits he piled on the pounds to play a lawyer on the run from mob boss Randy Quaid, because he needed the extra weight to keep out the chill.

He says, "You can't be too thin on these types of film sets. Charlie, my character, was such a mess so I just let myself go a little, ate salty food.

"They bring pizza around the set and usually, because we're vain actors and we want to look good, we don't partake, but I was just like, 'Yeah, give me the pizza!'"