Sing Faster: The Stagehands' Ring Cycle is a 1999 documentary film directed by Jon H. Else, that explores the work – and leisure activities – of a crew of stagehands at the San Francisco Opera, 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 performance time of seventeen hours, is regarded as the most ambitious production an opera company can mount. The film was distributed by the American Public Broadcast Service as part of its Independent Lens series.