What is it to you, you pos... I want to buy a DVD for my collection and since I wasn't around then I am asking if anybody knows which was her best film. Why do you give a shit ? Are you jealous?
Besides the aforementioned "Tiffany's": Roman Holiday Sabrina Funny Face Charade My Fair Lady Wait Until Dark Which is "best" depends on one's individual taste, but these are all good films. H