Rebecca Pidgeon...
She needs to only do non-speaking roles. Her accent in this movie is so bad, as usual. Her odd way of speaking is totally distracting. It took me out of the scenes she was in. If she wasn't married to Mamet she'd have no career at all. She's a terrible actress, but Mamet likes to cast family members, regardless if they can act or not. There three other Mamets in the cast list...and that does NOT include Pidgeon.
She's a decent singer though...she should stick to singing and ditch the acting. Her accent in every movie she does is odd, odd, odd. Doesn't matter if it's an American accent or British, she has a distracting way of speaking and that's a very bad thing for an actress.