“I would have loved to have been at the opening performance of “Oedipus Rex” when that meshuginah comes out with his eyeballs in his hands,” said Sidney Lumet in his conversation with Adam Green at Bay Street Theater at last week's Hampton's International Film Festival. The famed director of “Before the Devil Knows You're Dead,” his latest in a distinguished career of classics, spoke about his new film as melodrama, that is “reality pushed to the extreme of the highly improbable-not impossible, improbable.” The last time I saw him at the Sag Harbor theater was for the opening of “Blue Light,” in 1994, when he directed Dianne Wiest and Mercedes Ruehl in the world premiere of a play based on Cynthia Ozick's novella, “The Shawl,” about a Holocaust survivor and a denier. Sprinkling his speech with Yiddishisms, he noted his beginnings as an actor in the Yiddish theater on Manhattan's Lower East Side. After service in WWII, he turned to directing, and is regarded an “actor's director.” Last night at the Times Center, at a tribute hosted by the Museum of the Moving Image, Philip Seymour Hoffman, Ethan Hawke, and Marisa Tomei, stars of the new movie opening today, testified to that reputation. The film about a botched robbery is also about family, with seething father/son themes worthy of Sophocles, with Biblical brother/brother rivalries, and a mismatched marriage. The film opens with a graphic sex scene featuring Hoffman and Tomei. After a career of avoiding such scenes because they always look fake, the actors lubricated with Vaseline, Lumet told David Schwartz in an interview, that he added to the script by Kelly Masterson by choreographing every move. Both stars are naked, doing “it” and I don't mean in the missionary position. Lumet worried how Hoffman would handle that more than Tomei: “you know,” he said, “Philip is not Brad Pitt.” Marisa, in an act of generosity just jumped on the bed, slapped her behind and said, “come on, Philip,” recounted Lumet. And then later in a sex scene with Hawke, Ethan wouldn't get naked unless everyone including the crew, stripped. Not missing a beat, David Schwartz asked, “So how did it feel directing in the nude?”