The 29-year-old actress recently chopped off the majority of her long brunette tresses to prepare for her forthcoming role of Fantine in the film adaptation of 'Les Miserables', and she was reduced to a "mental patient" level of tears when she first saw the finished result.
She said: "[I was reduced to] a mental patient level of crying … I was inconsolable."
Anne initially didn't think her trim would be a "big deal," but she now insists having her hair cut so short was harder than "doing back flips out of windows and jumping off of buildings."
Speaking on 'Live! With Kelly', she added: "I wasn’t expecting [cutting my hair] to be a big deal. It was my idea to do it, since it was something the character did. [Then] I realised I couldn’t take it back."
After getting over the initial shock of her new look, the 'Dark Knight Rises' actress admits she now "quite likes" having short hair.
She recently explained: "I'm just so pleased with how I look, so I now quite like having short hair. I did it for a film, so it really wasn't about me and my security."