Sienna Miller’s New Beau?

By: Shannon Gossage

Miller and Christensen have reportedly grown close on the set of their latest film Factory Girl. Reportedly, Christensen has been offering Sienna s shoulder to cry on after her recent split with on-again-off-again boyfriend Jude Law. A source said, "Sienna and Hayden aren’t doing a very good job of keeping their flirtations a secret." The two were recently spotted looking more than friendly at a cast party. Said an onlooker, "Everybody has been talking about it for awhile and after the cast party they were acting like more than good friends. The flirtation allegedly kicked into high gear once a karaoke machine was introduced at the party.

A source said, "The party was just getting going when someone brought out the restaurants karaoke player – Sienna was on it in a flash. She started jokingly serenading Hayden before begging him to join her on stage and it wasn’t long before he complied. They’d had a fair few drinks by this time and their flirting was obvious to everyone."

Miller and Law became engaged last Christmas, but their relationship hit the skids in July when Law admitted that he had had an affair with his children’s nanny. He offered Miller a public apology and the two tried sorting things out, but apparently it is a no go. Sources say that Miller hit the roof when Law announced he was moving in with his ex-wife Sadie Frost and their children for a month while filming his latest movie. Another source said Law became fed up with Miller feeling as if since he was unfaithful, she got to "pull all the shots." Said the source, "Jude put up with it for awhile, but in the end her behavior drove him away."