Is Chloe Sevigny replacing Demi Moore in the upcoming Linda Lovelace biopic?

One day after news broke of Moore's hospitalization, producers of Lovelace have announced that Sevigny has joined the cast, which already includes Amanda Seyfried as the title character, the star of the pornographic movie Deep Throat.

Sevigny, 37, will play a feminist journalist on freelance assignment for a men's magazine, according to The Hollywood Reporter.

While Sevigny is not an official replacement for Moore, the actresses' roles in Lovelace are very similar. Moore was to play feminist leader and Ms. Magazine co-founder Gloria Steinem, who profiled Lovelace for an issue of Ms. in 1980.

On Monday, Moore, 49, was rushed to an Los Angeles hospital after a 911 call was made from her home.

Despite rumors of substance abuse and anorexia, Moore's rep stated that the hospitalization was due to stress.

Demi has chosen to seek professional assistance to treat her exhaustion and improve her overall health. She looks forward to getting well and is grateful for the support of her family and friends, Moore's rep told TMZ.

In November, Moore filed for divorce from Ashton Kutcher after six years of marriage. Kutcher, 33, had reportedly cheated on Moore with Sara Leal, 22.

As a woman, a mother and a wife there are certain values and vows that I hold sacred, and it is in this spirit that I have chosen to move forward with my life, Moore said in a statement at the time.

Lovelace, which began production in L.A. in December, also stars Hank Azaria, Bobby Cannavale, Chris Noth and Peter Sarsgaard. In late December, James Franco was close to signing a deal with Lovelace producers to play Playboy boss Hugh Hefner. No word on whether or not the deal went through.

Lovelace tells the story of Linda Lovelace, the woman who became the most famous porn star of her time thanks to the 1972 porn film Deep Throat. Lovelace later joined the feminist anti-pornography movement before contracting hepatitis from a blood transfusion. She died in 2002, at the age of 53, after succumbing to injuries from a car accident in Denver.

Sevigny's last major project was the HBO series Big Love, which wrapped in March 2011 after five seasons. Seyfried was also in that show.

Lovelace, directed by Rob Epstein and Jerry Friedman, will most likely have a late 2012 release.