My favorite film with Brando will always be "The Last Tango in Paris," which I find to be an incredible film (and beautifully shot by Vittorio Storaro). However, his best work is arguably "On the Waterfront," which is another favorite of mine. Others: "A Streetcar Named Desire," of course, as well as "One-Eyed Jacks," the Conrad Hall-shot "Morituri," his incredible, mad, silhouette-laden performance in "Apocalypse Now," and his most well-known work, "The Godfather."