Sienna Miller has revealed she went on a drastic diet to slim down to a controversial size 0 for a film role.
The 24-year-old plays Sixties icon Edie Sedgewick in Factory Girl, and in order to resemble her character as far as possible, svelte Sienna slimmed down to worryingly tiny proportions.
Sedgewick was a drug addict and suffered from bulimia, and died at the age of 38 from an overdose. Sienna said she switched her usual wine for vodka because it contains less calories, and lived on egg white omelettes. | 
