Heather's choice: Miss Witherspoon at the weekend [Agencies]

"Heather sees this film as the tragic and empowering story of her life - a young model who gets run over and loses her leg, overcomes her difficulties and marries her prince. But the most interesting part of the tale will be the dark goings on between the couple behind closed doors."

On Friday, Miss Mills flew to New York to arrange an interview with US chat show host Larry King in which, sources say, she "will not hold back".

She is also lining up an appearance on Oprah Winfrey's TV show and is expected to appear on the new season of U.S. TV hit Dancing with the Stars as a guest star.

Last night, spokesmen for Miss Mills and Sir Paul, 65, refused to comment on the progress of the divorce.

Sir Paul McCartney in Paris yesterday. His divorce negotiations with Ms Mills are not going well [Agencies]