Jacob Bernstein’s extremely entertaining film is a tribute to his mother Nora Ephron: Hollywood-raised daughter of screenwriters who grew up to be an ace reporter turned piercingly funny essayist turned novelist/screenwriter/playwright/director. Ephron comes vibrantly alive onscreen via her words; the memories of her sisters, colleagues, former spouses, and many friends; scenes from her movies; and, above all, her own inimitable presence. Watch any given moment of Ephron being her sparkling but caustically witty self (for instance, this response to a scolding talk show host—”You have a soft spot for Julie Nixon, don’t you. See, I don’t…”) and you find it hard to believe that she’s been gone from our midst for three years. Everything Is Copy (Ephron’s motto, inherited from her mother) is a lovingly drawn but frank portrait and, incidentally, a vivid snapshot of an earlier, livelier, bitchier, and funnier moment in New York culture.