By Rose Walano
Updated Mar 30, 2012 @ 2:30 pm
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Credit: Charles Sykes/Rex USA; Michael Germana/Everett Collection

Ever wonder what Lily Collins looked like before breaking out as one of this spring's biggest stars? Or are you curious if Julia Roberts was as much of a knock-out back in her high school days? The first of this year's two Snow White interpretations, Mirror, Mirror, hits theaters today, with Roberts as the Evil Queen and Collins as the fairytale princess, Snow White. To celebrate, we're taking a look back at the actress's transformations. Click through the galleries to see their most memorable beauty moments!