"Soup to Nuts: Pop Art and its Legacy," an exhibition opening tonight at the F. Donald Kenny Museum of St. Bonaventure University, features work by major pop artists from the United States and Britain, plus other pop-related work. Included will be prints and paintings by such renowned figures as Andy Warhol, David Hockney, Roy Lichenstein, Robert Indiana and Claus Oldenburg, among others. The exhibition, drawn from the collection of the University of Lethbridge in Alberta and the Kenny Museum collection, will go beyond pop by adding works by artists who retain some pop elements but aren't purebred specimens of a movement that glorified consumer products and star personalities. In this almost-pop group will be art by David Salle, Chuck Close and Richard Estes, known for his photo-realist renditions of gleaming New York City storefronts. The exhibition will continue through Dec. 9. For more info, call 375-4030.