I think it should be a body double, look at the freckle down between boobs. She has not it at any other photo for example this from 2006 http://img151.imagevenue.com/img.php...epremiereo.jpg
I'm inclined to agree on the body double. Anytime you see an unnecessary cut like that, it's almost guaranteed to be someone else. They could have easily kept shooting for another two seconds for her to get the clothing off, but instead they did a cut and instantly showed her face.
she used a body double in that movie. especially in her sex scene with aidan Quinn.