LONDON - DECEMBER 03: A canvas by actor Matt Damon hangs at the 'Stars On Canvas' Private View at the SW1 Gallery on December 3, 2008 in London, England. The canvases will be auctioned to raise money for The Willow Foundation which helps provide special days for people living with cancer, cystic fibrosis, motor neurone disease, muscular dystrophy, organ failure and Huntington's.