By Breaking Celebrity News Staff

More problems for one-time screen starlet Sean Young, who was placed under citizen's arrest at the official Academy Awards post-party in Los Angeles Sunday night.

The star of Ace Ventura: Pet Detective, according to reports, got into a heated tiff with security guard, reportedly slapping him. Police said Young, 52, was taken into custody at 9:25 pm PT Sunday at the Governor's Ball, in connection with investigation of misdemeanor battery.

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The Blade Runner star was processed into Hollywood police station and released at 2:55 am PT Monday, according to City News Service.

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Young told a news outlet upon leaving: “I’m OK ... the Academy’s lawyer ... recommended that a private person’s arrest be made, and I was standing outside ... seeing friends g