An Opera of Violence (2003) is a Documentary film that follows first part of a three-part documentary series on the making of Once Upon a Time in the West, Italian filmmaker Sergio Leone's masterpiece, released in 1968. (Followed by The Wages of Sin.) An Opera of Violence is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 6.8 out of 10 from 4 votes. Fans of documentary movies may also want to explore similar titles below.