British filmmaker Louis Theroux has spoken of his uncomfortable interviews with the victims of Jimmy Savile after failing to expose the entertainer as a sexual predator during the making of a documentary 16 years ago.
Theroux spent three months with the man who would be revealed as a prolific sex offender years later, and famously quizzed him on-camera about allegations of abuse.
He went on to maintain a friendship with Savile, even staying on occasion at the former Jim'll Fix It presenter's house.
In a new film to be aired in the UK on Sunday, Theroux will revisit the subject to try to "understand the truth more fully" by talking to Savile's victims, friends and family, including those he was introduced to by the DJ.