Even if the only film of hers you've ever seen is Breakfast at Tiffany's, dressing as Audrey Hepburn for Halloween is always a win. Today's incarnation of the ingenue is undoubtedly Lily Collins, and she channeled Audrey on the red carpet so well that we had to do a double take. The brows, the bob, the impish smile — it's all there. But to keep the look from being too cutesy or retro, Lily added a few contemporary touches. She made her hair supersleek instead of fluffy, wore an exaggerated cat eye, and ditched the lipstick entirely for a look that was impossibly cool without trying too hard. View the look from all angles and snag some product recommendations to ensure you have the most unique costume on Oct. 31 this year.