Marilyn Chambers Marilyn Chambers

Marilyn Chambers, an adult film star who also once modeled for Ivory Snow detergent, has died. She was 56.

Chambers' 17-year-old daughter found her dead at her home in northern Los Angeles County on Sunday night, a friend of the actress told the Associated Press.

Chambers was best known for Behind the Green Door, a 1972 film that was central to the "porn chic" movement, in which upper-middle-class adults developed an interest in hardcore pornography. The movie's success also reportedly prompted a surge in sales of Ivory Snow (slogan: 99 44/100% pure) when Procter & Gamble attempted to yank boxes featuring Chambers' picture from the shelf.

In addition to adult films, Chambers also appeared in 1970's The Owl and the Pussycat, which starred Barbra Streisand and George Segal.

Police have not yet released a cause of death.