LATEST: Sienna Miller has slammed reports she's dumped boyfriend Jude Law to start up a romance with her latest leading man, James Franco. Miller's representative, CIARA PARKES, tells American publication PEOPLE photos that were published of the couple together were actually pictures from a scene they were shooting for the film Camille. She explains, "The pictures of Sienna were of her doing a scene at Niagara Falls with James. "There were about a thousand people around them and it was a sad scene, the last scene of the movie. They are just joking about during takes." Miller and her 28-year-old co-star have been shooting the film in Canada for the past month. Meanwhile, Law has been filming MY BLUEBERRY NIGHTS in New York City. Miller and Law were spotted together in the Big Apple several weeks ago, but haven't been seen together since. Photos of Franco and Miller looking cozy on set sparked rumours of an affair But a friend of Miller's tells the magazine there is no rift between the celebrity couple saying, "Sienna and Jude are still very much an item. Just because they are working in different locations doesn't mean they've split up. "She and James are friends and even actors are entitled to have friends."