Slide-guitar great and world music alchemist Ry Cooder handpicked an orchestra of virtuoso musicians for a brief tour, including accordionist Flaco Jiménez, eccentric pianist Van Dyke Parks, drummer Jim Keltner, and singers Bobby King and Terry Evans. One stop was The Catalyst in Santa Cruz, where Les Blank joined them to film a night of freewheeling music, ranging from gospel and blues to rock and folk. The resulting concert film is seen tonight in a rare screening.