Given the incredible Disney-esque gowns she gets to wear in the film (see trailer below) 'Mirror Mirror' star Lily Collins faced a tough challenge to make her premiere dresses just as memorable. And with the impending release of another, much darker, Snow White adaptation (Snow White and the Huntsman), the gauntlet was very much thrown down. The young starlet needed to make a serious impression on the red carpet.

Luckily, Collins knows how to pull out the big guns, and so far she's worn two killer dresses for promotional duties. At the premiere in LA, she chose a Dolce & Gabbana black and gold lace prom dress, teamed with pretty half-up wavy hair and ankle strap shoes. The look was more than a little bit Zooey Deschanel-esque, and appropriate not only for the occasion, but also for such a young actress.

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Then came the premiere photocall in Paris, where Lily ditched the pretty to channel her inner vamp in a killer Zac Posen gown. Some have suggested it ages her, but we can't help but love the sheer drama of the designer's trademark fishtail design, with the addition of a corseted bodice and wing bust. It takes a brave girl to pull off a bold print and a dramatic cut!

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But what do you think? Which dress is best on Lily?