At the time of release, Chambers was the face of Ivory Snow laundry detergent , appearing on boxes with a baby under the slogan "99 44/100% Pure".

The narrative of Behind the Green Door is as deceptively simple as it is sensational. The film begins with the kidnapping of a beautiful, unnamed young woman, identified only as Gloria Saunders (played by Marilyn Chambers), in a San Francisco park. She is drugged and taken to a mysterious, opulent underground theater [5†L30-L32]. There, she discovers she is the guest of honor, forced onto a stage behind a lit green door to become the central performer in a elaborate sexual showcase for a wealthy, voyeuristic audience.

: Chambers’s character does not have a single line of dialogue throughout the 72-minute film. : The film was even screened at the Cannes Film Festival and was the second film ever inducted into the XRCO Hall of Fame Cast & Crew Behind the Green Door (1972) - Full cast & crew - IMDb

Following the massive commercial success of Deep Throat earlier in 1972, Behind the Green Door proved that explicit adult films could achieve mainstream box office success. It was treated as a legitimate theatrical release, reviewed by mainstream critics, and discussed in polite society. This phenomenon became known as "porno chic." Production and Visionary Direction

The 1972 American film Behind the Green Door stands as one of the most significant milestones in the history of adult cinema. Directed by the Mitchell brothers (Jim and Artie) and starring Marilyn Chambers, this movie played a pivotal role in the "Golden Age of Porn" or "porno chic" era. It transformed adult entertainment from an underground, illicit industry into a mainstream cultural phenomenon.