Apparently, Heather Mills has a lot going on in her agenda, including a new movie detailing her scandalous divorce to Paul McCartney. Heather reportedly wants Sienna Miller to play her in a film about her life. The movie is currently under negotiation The former model has reportedly been approached by film production company Working Title about the possibility of bringing her story to life on the big screen. The proposed project will focus on Heathers marriage to Paul, subsequent break-up and bitter divorce battle. The 38-year-old blonde, who lost her left leg after being run over by a police motorcycle in 1993, hopes Sienna Miller will be portraying her because she believes they both share similar traits. A source told Britains Daily Star newspaper, Heather has been approached by someone at Working Title about a movie based on her life. It will cover her version of being married to Paul and focus on her charity work. Heather sees herself in Sienna Miller. She thinks Sienna is great and gutsy.. . . . . Source: smart.