Recent DUI award winner, Mischa Barton, has been keeping herlsef hot'n'heavy with director Brett Simon, while working on their latest project "The Assassination of a High School President." Although the film flopped at the Sundance Film festival in January, the two don't seem to care, as their romance is getting steamier and steamier. According to a source close to the couple, he was even there to help her through her embarrassing DUI charges.