Audrey Hepburn has worn a lot of white shirts in her life. Other than the white shirts she made iconic in films like Roman Holiday and Breakfast at Tiffany's, she loved white shirt and white blouses in her own life.
The style she preferred was always simple with regular shirt collar or peter-pan collar in different variations, loose fit or slim fit, with occasional pin-tucks. But what she made her white shirt looks so unique and so uniquely Hepburn are the way how she wore the white shirt: She would wrap the tails of shirt around her slim waist making it look like a wrap top, or tie a knot with them; she would raise up her collar to make a simple white shirt look noble, and her already long neck look even longer; she would use bracelets as a cuff links to make the shirt look ceremonial. But no matter what she did with the white shirt, and no matter what kind of shirt she wore, Audrey Hepburn never never over expose herself, she always buttoned up at the right place.
No. 1: In film Breakfast at Tiffany's, 1961
No.2: In film Roman Holiday, 1953
No. 3: Photoshoot for Life Magazine while Audrey Hepburn filmed Sabrina, by Mark Shaw, 1954