On the trail of a missing girl, an ex-cop comes across a secretive group attempting to summon a terrifying supernatural entity.

A 42-minute making-of documentary, “Inside ‘Inside Llewyn Davis,’” produced and directed by David Prior. A number of cast and key crew people are interviewed, but, not surprisingly, the Coens, music…

This feature-length documentary about the making of “The Social Network” goes back and forth from the elements of storytelling and long rehearsals with the cast and crew, to the shooting…

A documentary featuring interviews with the people involved with the Zodiac killings, covering every aspect of the investigation, including the original investigators and surviving victims.