Director, screenwriter, and producer, best known for ONE DAY IN SEPTEMBER (Academy Award winner for Best Documentary Feature), TOUCHING THE VOID (BAFTA Best British Film), MARLEY (BAFTA Best Documentary Film nomination), SKY LADDER: THE ART OF CAI GUO-QIANG (Sundance Grand Jury Prize nomination), as well as LIFE IN A DAY (2011 and 2021), and WHITNEY. He co-authored IMAGINING REALITY: THE FABER BOOK OF DOCUMENTARY with Mark Cousins.