Tribeca continues to be this blast of energy radiating from the downtown media hub on Varick Street,  including the Regal multiplex in Battery Park through the SVA Theatre on W. 23rd up through some events at the Beacon on the UWS. The festival opened with The Apollo, an HBO doc by Roger Ross Williams, about the life of one of the most vibrant showplaces in the world, over there on 125th St.