SAN FRANCISCO — "Bourne Supremacy" star Matt Damon (search), "Lost in Translation" actress Scarlett Johansson (search) and other celebrity artists are donating their talents -- not just their cash -- to an online effort to unseat President Bush. The Internet political group MoveOn.org on Tuesday premieres 10 new anti-Bush ads created by award-winning directors and starring popular Hollywood actors. An independent group not connected directly to Democratic candidate John Kerry (search), MoveOn has promised an unconventional approach to the election.