'A Sixth Part of the World'

Dziga Vertov completed the epic documentary 'A Sixth Part of the World' after his ejection from the Cold War-era Soviet documentary film unit Sovkino. The breathtaking and broad-reaching doc, praised by revered experimentalist Chris Marker, screens Wednesday as part of PFA's annual avant-garde film program Alternative Visions. More info at bampfa.berkeley.edu.