Julia Roberts and Bruce Willis will appear together on TV for the presentation this Saturday in Los Angeles of the American Cinematheque Award to Willis by Roberts, the Cinematheque (a film appreciation and preservation society) said in an announcement. Attendees expected to turn out for the event include Willis's "The Sixth Sense" costar Haley Joel Osment, as well as Cate Blanchett, Billy Bob Thornton, Paul Reiser and Matthew Perry of "Friends," the show that earned Willis an Emmy for his guest appearance. "Hollywood Salutes Bruce Willis" will be taped and broadcast on TNT Sept. 27.