Hot young things Dianna Agron, Alex Pettyfer and Teresa Palmer posed together on the red carpet for the premiere of their new flick I Am Number Four in LA. The trio were reunited for the LA event after Alex and Teresa promoted the movie in London. Blonde beauties Dianna and Teresa went for polar opposite looks — Dianna was all elegance in a cream ensemble while Teresa showed her sexy side in a backless black dress with a thigh-high slit. The Glee star also stuck close to on- and offscreen boyfriend Alex for a few photos, and she recently wrote on her blog that rumours the two are engaged are untrue. The premiere attracted other big names like Steven Spielberg, Modern Family’s Ariel Winter and rising star Chloë Moretz. The movie opens here on Feb. 24.
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