'I Am Number Four' Stars Alex Pettyfer and Dianna Agron Split

While the sci-fi teen drama brought in $19.5 million in its opening weekend, the success of I Am Number Four was not enough to maintain the relationship between its two young stars, Alex Pettyfer, 20 and Dianna Agron, 24. The couple have ended their relationship after less than a year together, Us Weekly reports.

The blond and beautiful duo, set up by their director D.J. Caruso, received a flurry of attention leading up to the film's release and were the subject of rabid engagement rumors just weeks ago. Despite all of the buzz, an unnamed source revealed that Dianna actually moved out of the home the two shared last week, signifying their decision to go their separate ways. So much for love conquering all. —EMILY EXTON