Leelee Sobieski has gone from geek to chic!

The actress, who was only 15 when she starred in "Never Been Kissed" opposite Drew Barrymore, celebrates her 30th birthday today -- and she looks better than ever.

And while Sobieski would later star in movies like "Eyes Wide Shut" and the oh-so-horrible "Wicker Man," she's also turned into quite the fashionista and is usually seen sitting front row at runway events around the world. 

Besides Leelee, the cast of "Never Been Kissed" is packed with some pretty surprising (and then-unknown) talent -- and even marks the film debut of Mr. James Franco.

Check out the gallery above to see how the rest of the cast has aged since 1999!

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