updated 01/13/2011 AT 9:35 AM ET
•originally published 01/13/2011 AT 8:50 AM ET
Keira Knightley and Rupert Friend, whose work together on 2005’s Pride & Prejudice led to a long off-screen relationship, have split up.
A source tells PEOPLE that the couple, who had shared a London home overlooking Hyde Park, quietly broke up a few months ago, shortly after Knightley bought a house in the South of France, outside Nice.
Distance and career “were both considerations,” the source says. “It was time for her to move on.”