MISCHA LETS SLIP ON NEW PROJECT After telling reporters on Thursday she was having the "time of her life" frolicking with models and splurging on clothes during her stay in Sydney, Mischa Barton accidentally said too much about her next project. "Unfortunately I have head back to the US soon to screentest for Jumper," she blurted before exclaiming "Oops!" and covering her mouth. New Idea can exclusively reveal that Fox execs are keen to sign Mischa onto the role of Millie straightaway, before filming on Doug Liman's sci-fi thriller is scheduled to begin early next month. "She's perfect - well-known, charismatic and gorgeous," a studio insider tells us. "It's being kept hush-hush as the actress she's replacing [Aussie starlet Teresa Palmer] is none too pleased about the situation." Oh dear. Australian New Idea magazine, currently on stands