Kumail Nanjiani gently skewered a room full of Hollywood heavyweights in his opening monologue at the Directors Guild Awards , taking aim at the Epstein files, runaway production, the extended running times of many movies and the fact that the guild’s top award was named in honor of director D.W. Griffith until 1999. He quipped that the DGA kudos, which are part of a marathon of industry precursor awards events leading up to the March 15 Academy Awards, represents “Hollywood’s biggest night —