Sir Paul McCartney's estranged wife Heather Mills is set to star in a new documentary by British broadcaster LOUIS THEROUX. The presenter is keen to expose the truth about Mills' ongoing divorce from the Beatles legend and her former life as a glamour model. Theroux has written to Mills several times in an attempt to get permission for the film but is still awaiting official confirmation. He says, "She'd be fascinating. She needs to show her side of the story, which, for one reason or another, isn't coming through. I haven't heard back so far." Mills and MCCartney - who split in May 2006 after four years of marriage- are currently locked in a bitter divorce battle and are due to appear in court to continue negotiations in February (08).