Actress Sean Young was arrested outside the Governor's Ball, the Academy's official Oscar after-party, after an alleged altercation with a security guard.
TMZ reported that the 52-year-old troubled actress was placed under citizen's arrest by security until the Los Angeles Police Department arrived and took her into custody. She was taken to the Hollywood substation where she was booked for misdemeanor battery and released.
Her rep did not immediately respond to a request for comment.
But while leaving the police station, Young told a cameraman for the website that she blamed the entire encounter on the Academy lawyer.
"I was standing outside the cord and waiting and seeing friends that were going up to the Governor's Ball," she said, when she was carted off by police.
"Shame on you for that," she said of the Academy, adding that the lawyer should be fired.
According to TMZ, it was Young who was in the wrong.
The website said she was standing near the entrance posing for pictures with stars, such as Angelina Jolie and Brad Pitt, Michelle Williams and Jonah Hill and Sandra Bullock, when security guards realized she didn't have a ticket. Young was asked to leave and did so, but returned a short while later. This time, when security asked her to leave, a guard placed an arm on Young, at which point she allegedly slapped him.
She was then placed under citizen's arrest.
Young, who appeared in "Blade Runner," "No Way Out" and recently "Young and the Restless," has a history of alcohol abuse, and her 2011 stay in rehab was depicted in "Celebrity Rehab With Dr. Drew."