Liberty Ross files for divorce from Rupert Sanders The director's father, Michael Sanders, a retired surgeon, said at the time of Miss Stewart: "This girl's a pretty young thing and if you've been gadding around for five months, or what have you, you're bound to get a bit friendly. This kind of thing gets blown out of all proportion. Miss Ross, who is being represented by Laura Wasser, a high-profile divorce lawyer, is said to be asking for joint custody of the couple's two children, as well as financial support from Mr Sanders. According to TMZ Mr Sanders has filed a response to the divorce, also asking for joint custody of the couple's children, Skyla, seven, and Tennyson, five. Miss Stewart issued a statement after photographs of her "flirtation" with Mr Sanders appeared last year. In it she apologised to fellow Twilight star Robert Pattinson, with whom she shared a house. "I'm deeply sorry for the hurt and embarrassment I've caused to those close to me and everyone this has affected," she said. This momentary indiscretion has jeopardised the most important thing in my life, the person I love and respect the most, Rob. I love him, I love him, I'm so sorry. Meanwhile Miss Ross is said to have formed a friendship with Jimmy Iovine, the American music producer. The pair were seen together at parties after the Golden Globe Awards in Los Angeles earlier this month. "There's no indication anything has happened, but there is a lot of attraction between them," a source told the New York Post.