Rocker Chris Martin and actress wife Gwyneth Paltrow have denied rumours they are on the verge of splitting. The famous couple, who are notoriously private, have been subject of speculation after not stepping out together in public for months. But Paltrow's publicist tells Britain's Star magazine, "Gwyneth and Chris, as a policy, do not talk about each other in the media, nor do they attend public functions together. "They have not been apart all summer, as you suggest, and she does not want to move to America."