Mischa Barton 2007 booking photo for DUI

Mischa Barton 2007 booking photo for DUI

LOS ANGELES -- Actress Mischa Barton is out of the hospital after reportedly being placed on an involuntary psychiatric hold two weeks ago.

Barton plans to return to work on her new series, "The Beautiful Life," according to Barton's publicist Craig Schneider.

Schneider would not elaborate on Barton's condition but said Monday that the actress was "out of the hospital and continuing to improve in anticipation of resuming production as planned."

Shooting on the fall new drama "The Beautiful Life" was set to begin July 22, but was pushed back to July 31 while Barton was hospitalized. Sources said the delayed production was due to several sets that had yet to be completed.

The show -- executive produced by Ashton Kutcher -- is about models living in a coed residence in New York City. Barton plays a high fashion, pill-popping model trying to keep on top of her career.

The troubled actress was reportedly fresh off a three-day bender and was so high on cocaine her friends thought she might kill herself when she was transported to the hospital on July 15, The New York Post reported.

Los Angeles police responded to Barton's L.A. residence around 3 p.m. after receiving an emergency call, according to LAPD spokesman Richard French.

Officers began assisting Barton with a "medical issue," French said.

According to French, "No arrests were made and no one else was involved."

The 23-year-old actress was taken to Cedars-Sinai Medical Center, and reportedly placed on an involuntary psychiatric hold (also known as a 5150).

Schneider, said in a statement that "police were involved due to Ms. Barton's celebrity status, to safely transfer her to medical treatment as per doctor's orders." He added that Barton was "O.K. and resting."

A source close to the investigation told "Access Hollywood" that Barton was placed under Section 5150 of the California Welfare and Institutions Code by police and transported to Cedars-Sinai.

According to the code, authorities can hold a person involuntarily for up to 72 hours if they present a danger to themselves or others, are gravely disabled or suffer from a mental disorder.

This same code was used to hold Britney Spears twice in Los Angeles in January 2008.

Barton missed the premiere of her new film "Homecoming," in New York City while she was hospitalized.

Barton, best known for her role as Marissa Cooper in "The O.C.," also had roles in "The Sixth Sense," the teen flick "Tart" and daytime soap "All My Children."

In May 2007, Barton was taken from a Malibu beach party to a hospital because of what was reported to be a reaction to cold medicine.

Barton was arrested late in 2007 and charged with a D.U.I. and marijuana possession.

She was sentenced to attend alcohol education classes, 36 months probation and pay a fine.