Telluride Film Festival founders Bill Pence and Tom Luddy bask in the French sunshine at a party thrown by the fest organizers.Roger Ebert and wife Chaz Hammelsmith Ebert attended the party at Variety Village Tuesday. The co-directors will work with composer Stephen Sondheim to curate and present some of the programs. Sondheim will be guest director and Ted Turner will receive the silver medallion at the 30th Telluride Film Festival. “Far Side” cartoonist Gary Larson will design the poster. Larson, Sondheim and Turner will attend the fest, which runs Aug. 29-Sept. 1.