"SNL's" dark, troubled past: New documentary chronicles the show's struggle with sexism & race

Bao Nguyen's “SNL” documentary “Live From New York,” chronicling 40 years of Lorne Michaels’ legendary comedic institution, opened the 14th Tribeca film festival at the Beacon theater last night. Introduced by Robert De Niro and followed up with a performace by Ludacris, bold-faced guests in …