Bradley Cooper is struggling to remember the name of the film for which he unsuccessfully auditioned in the early aughts, and Spike Lee, the director who rejected him, isn’t much help. The two men are discussing “Maestro,” Cooper’s penetrating look at the marriage of musical genius Leonard Bernstein and Felicia Montealegre (played by a note-perfect Carey Mulligan) when the conversation shifts to this first meeting. “You were so kind to me,” Cooper says.