I found an awesome overview today of Saul Bass on wellmedicated.com. He designed the title sequences for Psycho, Vertigo, The Man with the Golden Arm, and lots of other worthwhile films. Apparently, along with movie titles and posters, he also designed the logos for AT&T, Quaker Oats, and United Way. I love his use of strong shapes and negative spaces, very high modern. So cool.
check out an analytical break down of his title sequences at notcoming.com.