Sienna Miller and Hayden Christensen Dating?

Yesterday, we heard that Jude Law had dumped Sienna Miller, but might it have been the other way around? The Awful Truth is saying that it was Sienna Miller who sent Jude Law packing. And for none other than her Factory Girl co-star, Hayden Christensen. Yes, you heard right.

She dumped Jude the second Hayden came around. Gave him his walking papers! It was so cold. It's all about opportunity. She's just moving on to who's going to give her more publicity. Jude can't do that anymore.

Well, she certainly does know how to make the publicity machine work for her. Could it be that Sienna Miller and Hayden Christensen are dating? I guess we'll have to wait and see.

In the mean time, check out these pictures of Sienna Miller and Hayden Christensen on the set of Factory Girl. More pictures after the jump, courtesy of Just Jared.