Marriage is liberating: Keira Knightley

London: Actress Keira Knightley admits she loves being married as she found singledom exhausting.The "Anna Karenina" star wed Klaxons musician James Righton earlier this year and says she finds marriage liberating, reported Hello Magazine.The 28-year-old also revealed that she finds her love life, whether a heartbreak or joy, as inspiration for her acting work.[caption id="attachment_1212207" align="alignleft" width="380"] Courtesy: ibn live[/caption]"It depends, but you can get some great stuff out of break-ups and grief. Then you can get some great stuff out of the other side, too. I don't think one is better than the other. I don't think you can forget heartbreak or any of thenegative stuff. When you have experienced it, you can always use it," she said.Knightley stars alongside Maroon 5 singer Adam Levine in new musical drama 'Can a Song Save Your Life?'.PTI