In the scene where Yvette enters the room where she is killed, she has no french accent, even though she has had one throuought the movie. Unless she was supposed to be faking, you can't just drop you accent in a few hours!
I think she was faking. Even that would be a bit much for the actress to forget she had an accent. Or maybe that scene was one of the first shot filmed, and the accent was thrown in later....but still, thats a bit more noticable, and...hopefully would have been changed if she wasn't meant to be faking. I've rambled long enough now. lol