Was Kristen and Rob's hand-holding PDA a publicity stunt?

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New Moon fever is officially upon us, and hundreds of screaming fans were treated to a public appearance by Kristen Stewart, Taylor Lautner and, of course, Handbag office pin-up Robert Pattinson last night at a Twilight Saga: New Moon fan party at London' Battersea Evolution.

Fans from as far afield as Bulgaria and Spain had queued for hours to catch a glimpse of the film's stars as they walked the red carpet signing autographs. But for us, the most intriguing image of the night was taken before the flashbulbs started popping and the screaming started - as Pattinson and Stewart were photographed holding hands whilst boarding the plane from Paris to London. Rumours have been flying about an alleged romance between the co-stars for months - is this real proof they're an item or just a publicity stunt for the film?

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