'OC' actress—who played bi

Actress Mischa Barton was arrested for investigation of misdemeanor driving under the influence and possessing marijuana after her car was stopped by sheriff's deputies early Thursday morning in West Hollywood.

Los Angeles County sheriff's officials said the former star of The O.C. was taken into custody after deputies saw her car straddling two lanes of traffic and failing to signal while making a turn.

''During Ms. Barton's detention, it was determined that she was an unlicensed driver and was driving while under the influence of an alcoholic beverage,'' their statement read.

The 21-year-old actress was arrested for investigation of driving under the influence of alcohol, driving without a license, possessing a controlled substance, and possessing marijuana, according to a statement from Sgt. John Hocking. She spent about seven hours in the West Hollywood jail before being released on $10,000 bail. A court hearing was scheduled for February 28. Calls to her manager and publicist were not immediately returned.

Barton played Marissa Cooper on The O.C. from 2003 to 2006, when her character died in a car crash. Barton had a brief lesbian storyline on the show that featured Marissa and another female character engaged in a fling. She also has appeared in several movies, including The Sixth Sense and the upcoming Virgin Territory.