Miller "lost innocence" from Law's cheating

Sienna Miller has said she lost her innocence when Jude Law cheated on her with their nanny.

The pair ended a three-year relationship in 2005 when the actor's affair was uncovered.

Miller, speaking on the US chatshow Conan O'Brien, said, apart from the heartbreak, the ordeal had affected her in the long term.

"What makes me sad is that there was a loss of innocence on my part," she explained. "I sort of feel like, what if I never love that vulnerably and that openly again?"

Meanwhile, reports have claimed Miller actually had sex with Hayden Christensen for a scene in Factory Girl. "It's not simulated," a source apparently claimed. "They're really doing it." The actress's spokesman responded: "She's just a really good actress."