One thing most of the stars of "The Godfather" had in common was that they were relative unknowns. Most were new to film and hungry to prove themselves, though even the veterans -- especially Marlon Brando, considered washed-up at 47 when he agreed to star for a tiny fraction of his usual fee -- felt they had something to show anew. The 1972 blockbuster made stars of them all. Some parlayed their fame into celebrated careers that last to this day; others couldn't avoid typecasting, but soldiered on as long as they could. Here's a look at 20 of the movie's stars and what became of them after the mob saga propelled them to new heights of fame.