MISCHA BARTON

The former The O.C. star - who plays a Russian lesbian who falls in love at a t.A.T.u concert in the film - pulled out of her promotional obligations for the film, claiming she was returning home, in an apparent bid to distance herself from the project.

But, while her movie premiered at the glamorous festival this weekend (16-18May08), the 22-year-old was spotted drinking champagne at a nearby bash.

When asked why she was absent from her film's first showing, she told reporters: "I was never due to go."

Source: WENN