Why won't Owen pose with Kate?

If love is in the air for Owen Wilson, he is not showing it. Romance is said to have blossomed between the actor and his You, Me And Dupree co-star Kate Hudson, who has split from her rock star husband.

But at the London premiere of the romantic comedy, Wilson was running scared. He refused to speak to the press at the Odeon Leicester Square, mouthing "no, no" to aides and dashing into the cinema.

While he switched on the charm for the TV cameras, he astonished photographers by refusing to have his picture taken directly beside a poster of his alleged lover, pushing co-star Michael Douglas into the spot instead.

Hudson, 27, was not in London. Goldie Hawn's daughter is said to have pulled out because of her split from Chris Robinson, of the Black Crowes, after six years of marriage.

The couple have a two-year-old son, Ryder Russell. American magazine Us Weekly reported that Hudson was "crazy" about Wilson. They are said to have spent nights together at his Santa Monica home and shared hotel rooms during the film's promotional tour.

Her spokesman confirmed the marriage split but would not comment on the alleged affair. For his part, Owen, 37, has hired Hollywood heavyweight lawyer Martin Singer to sue anyone who suggests the actor caused Hudson's split.