In 1968 he joined the Central Office of Information (COI), eventually becoming their Head of Television and Film Production.
[2] His directorship was marked by his 2000 decision no longer to cut films for adults (unless they broke criminal law).
[citation needed] On retirement from the BBFC, he was appointed Commander of the Order of the British Empire (CBE) in the 2005 New Years Honours for services to the film industry.
In his personal life, Duval's interests include attending concerts, operas and football matches.
However his latest novel, Going to America, published in 2021, explores a quite different theme: the conflict between age and youth as an old and once famous actor takes his granddaughter on the trip of a lifetime to New Orleans.