Rupert Everett will quiz Russell Brand about his sex life for a new British documentary about prostitution.
The two-part Channel 4 show, called Love For Sale, includes interviews with people who buy and sell sex in locations including Tel Aviv, Paris and Exeter.
Everett, who has recently spoken out against police raids on brothels in central London's Soho, said: "Prostitutes are the world's unacknowledged experts on our most intimate desires."
Brand has spoken openly in the past about going into rehab for sex addiction and about his encounters with prostitutes. He also wrote about the topic in his memoir, My Booky Wook.
Sara Ramsden, a commissioning editor at Channel 4, said: "Rupert has a unique authorial voice and his opinions range from the theological to the idealogical. It's great to see someone stand up so strongly for the dignity of women living with very difficult choices."
Other new shows announced by Channel 4 include 24 Hours In Custody, which is filmed inside a Luton police station; a documentary about a group of Royal Marines new recruits; and My Last Summer, which follows the lives of five terminally-ill people and their families.
