Dianna Agron, Alex Pettyfer Break Up: 'I Am Number Four' Couple Split According To Report

With the photo calls over, the smiles can be dropped. And there's no smiling between Alex Pettyfer and Dianna Agron.

Us Magazine reports that the young pair and stars of "I Am Number Four" have called it quits on their relationship. A source close to the now former couple told the magazine that Agron has packed up her bags and left the home they shared together.

That's quite the change from just a few weeks ago -- People.com reported that the two were perhaps even engaged.

At least it was a lucrative relationship -- and we'll always have their big screen kisses to remember them by. And Alex will always have the behind the scenes video of Dianna in her underwear at the GQ photo shoot.

Click over to Us Magazine for more.