Denman joined October Films in 1995 as a director. Over the next nine years he originated, directed and executive produced a wide range of films, from observational documentaries to science, history and current affairs programmes. In 2004 he became the company’s Managing Director, and continued to executive produce many of October’s award-winning programmes.
In 2014 following a period of significant growth the senior management team was expanded and Denman was appointed Executive Chairman. He continues to develop and produce October productions and together with the rest of the four-member October board sets and implements the company’s direction and strategy.