Sing Faster: The Stagehands' Ring Cycle is a 1999 documentary film directed by Jon H. Else, and distributed by the American Public Broadcast Service as part of its Independent Lens series. The film documents the work and recreation of a crew of stagehands at the San Francisco Opera (members of IATSE Local #16), as they prepare and rehearse for a production of Richard Wagner's complete Der Ring des Nibelungen (The Ring Cycle). The cycle, a set of four operas with a combined run-time of seventeen hours, is regarded as the most ambitious production an opera company could mount.