Work turned Theroux 'puritanical'

Documentary maker Louis Theroux has said years of hanging out with swingers and porn stars has made him “a puritanical person”.

The 42-year-old presenter, who has shared a hot-tub at a swingers’ party and filmed in a brothel, has just returned to Los Angeles to film some of the porn stars he met for his Weird Weekends show in 1997.