Mischa Barton was supposed to be in New York tonight to attend the premiere her of her new movie, Homecoming, which was directed by Morgan Freeman. However, she won't be attending after cops were called to her home last night.

Reports The Envelope:

After a call to police last night from her home, she's been placed under an involuntary psychiatric hold (also known as a 5150) by the Los Angeles Police Department and is currently at Cedars-Sinai Medical Center, reports Access Hollywood.

Barton was put under Section 5150 of the California Welfare and Institutions Code by police and transported to Cedars-Sinai. This code gives authorities the power to hold a person if he or she is gravely disabled or suffers from a mental disorder.

The Homecoming, the trailer to which she posted to her blog recently, was supposed to be her big comeback. So much for that.

Mischa Barton Pulls a Britney, Is Placed in Involuntary Psychiatric Hold [The Envelope]