Stanley Kubrick had a dedicated assistant, and not one who simply held the master’s cinematic paintbrushes. He staffed research, production, post-production and marketing departments all on his own. Tony Zierra’s brisk documentary teaches us much about a genius director, the assistant that devoted himself entirely to the director’s mission, and the nature of work and ambition. With interview input from Ryan O’Neal, Matthew Modine, and R. Lee Ermey. On DVD from Kino Lorber.