Mischa Barton Flubs Lines, Frays Nerves On The Set Of “SVU”

Mischa Barton has spent much of the past week filming a guest spot on NBC’s veteran crime drama Law & Order: Special Victims Unit, but the former “It Girl’s” turn as a leggings-wearing Lady of The Night has made her the most talked about woman on set — and that isn’t a good thing. According to a sneaky snitch close to production, Mischa — who was admitted to a psychiatric hospital last summer — spent all day Tuesday flubbing her lines, turning the shoot into a 10 hour day for the frustrated cast and crew. Sources say SVU only shot one scene the entire day, thanks to Mischa’s “unprofessionalism.”

“She only had seven lines, seven! Each time she would mess up she would forget her lines and Mariska kept prompting her and saying ‘it’s your line Mischa.’”

Mischa’s certainly no stranger to acting on the small screen. The beauty played Marissa Cooper on FOX’s The OC before leaving the show in 2006. Most recently, Mischa starred in the short-lived CW drama The Beautiful Life. That show was cancelled last fall after just two episodes.