The actress, who is married to actor/director Ben Affleck, plays an ambitious Iowa butter sculptor in the comedy and she relished the opportunity to show off her ""inner b**ch"".
She says, ""I play a lot of girl next doorish kinds of characters. I am a girl next door in real life and I am sick of myself! I am so over it. I don't want to see another simpering smile; I'm done!
""So this, to me, was heaven on earth. She (character) is not to be emulated in any way and she is a heinous person but, as far as relating to the ambition and the competitiveness, I think it stretches it for me.""