It isn't merely his brilliant acting and physical beauty, but that extra quality people in show business call "stage presence." Only 2 of these titles (JULIUS CAESAR and TEAHOUSE) are among the very best of his 38 major films, but all 5 are ample proof--if proof is needed--that Marlon Brando is one of our most enduring stars.
JULIUS CAESAR: Shakespeare gets the fancy Hollywood treatment, with a young Brando heading an impressive cast, and he more than holds his own with the likes of James Mason, John Gielgud, and Deborah Kerr. His Marc Antony is a fascinating interpretation.
THE TEAHOUSE OF THE AUGUST MOON: In this film of John Patrick's Pulitzer Prize-winning play, Brando is the sly Japanese(!) interpreter for a group of Americans in postwar Okinawa. He wouldn't be cast in the part today (they'd find an appropriate Asian actor), but it remains one of his best comic performances.
MUTINY ON THE BOUNTY: A solid remake of the classic, not as good as the original and way too long, but worth a look for Brando's complex portrait of Fletcher Christian. And the cinematography is stunning.
REFLECTIONS IN A GOLDEN EYE: Perhaps his most offbeat role, as a repressed homosexual Army officer who prefers (nude) Robert Forster to (nude) Elizabeth Taylor. John Huston's film of Carson McCullers's novel is certainly--umm--naked, a kinky but interesting oddity.
THE FORMULA: Brando only has a couple of scenes in this film version of Steve Shagan's bestselling thriller (George C. Scott and Marthe Keller are the actual leads), but it's awesome to watch him and Scott locking horns. Nobody could play a charming villain as well as Brando (see THE GODFATHER), and the subject of this film (the formula of the title) is surprisingly timely.
So, you decide which are your favorite Brando films, but these 5 are all interesting examples of his work.