Llion worked for two years as a newspaper reporter before spending a decade at the BBC, producing and directing documentary films for BBC1, 2, 4 and was a freelance director. His films have won awards in France, Canada, Switzerland and an RTS award. Llion was recruited as a commissioner for Factual Content and Sport at S4C in 2012, where he secured the rights to the Tour de France. In 2016 he was appointed Head of Content Distribution and was a member of the management team and the S4C Authority. He joined Welsh indie Cwmni Da in 2019 as Director of Content and took over as Managing Director in 2021. He is a regular panellist at film festivals in Asia, including Tokyo, Incheon in Korea and GMZ in China. Llion’s PhD was on documentary film and he has published five novels, a travel book and a diary of Geraint Thomas winning le Tour de France.