Simon Channing Williams

In addition to his collaborations with Mike Leigh, he also produced other films, including teen suicide drama New Year's Day (2001 film) in 1999. He co-produced Nick Love's first film Goodbye Charlie Bright in 2000, and the same year he formed Potboiler Productions with producer Gail Egan (who also works closely with Mike Leigh and has been involved in the production of several of his films). Through Potboiler Productions Channing Williams produced Douglas McGrath's Nicholas Nickleby and Fernando Meirelles' Oscar-winning The Constant Gardener.

Channing Williams died aged 63, in Cornwall on 11 April 2009, five years after being diagnosed with cancer. Leigh paid tribute saying "His great phrase was 'let's just get on with things' and right almost to the last he was still working. He was a very extraordinary big man and he will be missed universally." Leigh dedicated his 2010 film Another Year to the memory of Simon Channing Williams.

Following Channing Williams' death, Mike Leigh started to collaborate with producer Georgina Lowe, who in 2011 took over Channing Williams' half of Thin Man Films.

A Most Wanted Man was dedicated to both Philip Seymour Hoffman and Simon Channing Williams in the closing credits.