We know we shouldn't take sides, but for some reason the news that Sienna Miller has been spotted getting slightly cosy with her new co-star is all fine with us.
Days after reports that she and Jude Law had split for good, pictures have appeared of Sienna hugging Star Wars actor Hayden Christensen.
They're both starring in Factory Girl but according to the Daily Mirror, they seem more than just co-stars.
During a party with their fellow cast and crew members at McArthur's restaurant in Shreveport, Louisiana, a spy reported back to the paper:
"Sienna and Hayden aren't doing a very good job of keeping their flirtations a secret.
"Everybody has been talking about it for a while and after the cast party on Monday they were acting like more than good friends."
And it seems that the introduction of a karaoke machine only heated things up further.
"She started serenading Hayden before begging him to join her on stage - and it wasn't long before he complied.
"After Sienna and Hayden sang together on the karaoke they were whispering and dancing in a corner of the restaurant.
"At one point she looked upset while he hugged her and whispered in her ear - that soon cheered her up."
Of course, Hayden could just be supporting Sienna after her and Jude's break-up... Mind you, isn't that what Vince Vaughn did for Jennifer Aniston?
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