Charlize Theron has hit out at claims she chose an unattractive role in new movie North Country to boost her chances of reclaiming the Academy Award she won in 2004 for Monster.

Theron - who gained weight to play serial killer AILEEN WUORNOS in Monster - glams down again in North Country, to play a female miner.

But the actress is angry she has been accused of courting Oscar voters to win another Best Actress award.

The South African star says, "That's nonsense. It was necessary to change my looks for North Country, because mine workers really don't look chic. When beautiful women change her looks for a movie - like Nicole Kidman in The Hours or Halle Berry in MONSTER'S BALL - that has nothing to do with calculation!

"It's the job of an actress to play other people."