Jun 04, 2008 at 2:14 pm

Mischa Barton & Taylor Locke Are So In Love

Mischa Barton walks back to her car with her rocker beau Taylor Locke (the guitarist from Rooney) after buying cigarettes at a mobile gas station in Hollywood on Tuesday.

Earlier in the evening, the 22-year-old former O.C. star helped the Nylon Magazine and MySpace celebrate their 3rd Annual Collaborative Music Issue, School Of Rock, with Scarlett Johansson on the cover.

Below is the trailer for Mischa‘s latest thriller, Walled In. The film is based on Serge Broselot‘s bestselling French novel “Les Emmeures,” about a demolition company rep (Barton) who supervises the razing of a mysterious building and discovers horrifying secrets and past inhabitants entombed within its walls by a vicious murderer.