Esther Williams, the star of many M-G-M musicals, has died at the age of 91. It's hard to believe in this day and age that there was a time when a person could become a major movie star based on the fact that she was a good swimmer, but it's true. It didn't hurt that she looked good in a bathing suit. To be fair, she was a pleasant presence on screen, and she was a passable singer and dancer, able to share a screen with Gene Kelly and Frank Sinatra (in Take Me Out To The Ballgame) without making a fool of herself.