Actors Colin Firth, Laura Linney and Julianne Moore are pictured filming a project in which they portray characters linked to British sex therapist Dr Alex Comfort, the author of the 1972 book “The Joy of Sex.” The images depict the performers in intimate scenes that are described as reflecting the themes of the original work.

The sources identify Comfort’s book as the central reference point, including its focus on sexual relationships and the public conversation it helped spark in the early 1970s. Coverage centers on Firth’s role at age 65, framing the production as a high-profile acting assignment tied directly to the legacy of Comfort’s bestselling manual. While the available reporting emphasizes the “throuple” dynamic and the steamy nature of the scenes, it remains consistent that the filming is explicitly connected to Comfort and “The Joy of Sex.”