Miller and Franco – who play newlyweds in the film Camille have spending a lot of time together off the set.

Sienna Miller’s publicist insist there is nothing going on between her client and Camille co-star James Franco but that’s not convinced Jude Law reports Fametastic.

A source told the Mirror: “Jude is confused and Sienna wants to put that right. She calls James ‘the Matinee Idol’ because of his good looks, but insists that nothing is going on - yet Jude thinks there’s no smoke without fire.�?

“Sienna asked him to fly to Toronto so she can see him in person and he’s told her he is prepared to listen to what she has to say. She knows it might be embarrassing for him to bump into James but she wants to show him they are not having a relationship.

“He wants to believe it but they both have trust issues from the past.�?

Meanwhile Perez Hilton posted this steamy “blind item�?

What seemingly cuckolded British actor doesn't have to worry? Sources tell PerezHilton.com that his Slutty girlfriend is just friends with her co-star, who also happens to be gay!!! Multiple sources close to the hunky actor confirmed this news to us, and - what more - they tell us that his boyfriend is staying with him in Canada, where they are filming. Now things make even more sense! This Slutty actress has bearded a closeted actor in the past. Could her Brit boyfriend swing both ways too???