Susan Mizruchi's "Brando's Smile: His Life, Thought and Work" forcefully reminds us of the actor's guile and charm, as well as his reckless bohemian spirit. But it tries to be something more, an "intellectual biography" of man who wasn't an intellectual in the conventional sense. But it's wise to remember that Brando was trained by the great Stella Adler, who emphasized that actors needed to respect writers and cultivate an expansive knowledge of the world. Ms. Mizruchi, an English professor at Boston University, has thus gone through scripts, letters, audiotapes and Brando's heavily annotated 4,000-book library to construct something that is less than what her subtitle claims but still more than I imagined possible.