John Shearman was an active young member of the wartime documentary movement while working at the RAF’s film unit. Post-war, he enjoyed long stays in two key organisations. At omnipresent production consultancy Film Centre, he was a significant behind-scenes influence on the advance of oil filmmaking, particularly Shell’s. On the home front, he became trusted right-hand man to British Rail Films supremo Edgar Anstey. Shearman’s many productions included the sequence of films documenting the 1960s construction of London Underground’s Victoria Line.