According to Mr. Skin's scouts at the Toronto International Film Festival, Jennifer Connelly shows bush during "Shelter".
At the 53-minute mark, Jennifer pulls down her pants, shows her panties and then pulls them down for us to see her bush as she injects herself with heroin down there. It's a full body shot, so she didn't use a body double! Twenty minutes later, there's an even more shocking scene where we see a shot of her face with cum all over it after a security guard expects something in return for giving her a place to sleep.
Shelter, was directed by Connelly's husband Paul Bettany.