EXCLUSIVE: First picture of the ex-boyfriend Mischa Barton claims secretly filmed their sex sessions and accuses of shopping the X-rated video to porn companies. Watch video · American actress Mischa Barton is enjoying a winter holiday Down Under. The year-old, best known for playing Marissa Cooper on teen drama The O.C., flew into Sydney, Australia last month. She is joined by her boyfriend, Melbourne model James Abercrombie, the son of wealthy former Victorian. Mischa Barton in Is she married or dating a new boyfriend? How rich is she? Does Mischa Barton have tattoos? Does she smoke? + .