London-born photographer Don McCullin, who's celebrated for his powerful images of the world's trouble spots in the 1960s and 70s, is himself the subject of David and Jacqui Morris's documentary portrait. The passing years have obviously given the veteran snapper time to reflect, and he proves a forcefully articulate interviewee, taking the story from his tough upbringing in Finsbury Park to the realisation that his gift lay in capturing the violence and chaos of war. His dedication transported him to the Congo, Vietnam, Biafra and Beirut, delivering unforgettable shots that attest to his compassionate eye and impeccable knack for knowing when to click the shutter. Often harrowing archive news footage helps sketch in the historical background, while McCullin recalls the painful contradictions involved in seeking out the most awful suffering and then taking photos. Here's a man who has witnessed what he terms "the price of humanity": his pictures and this compelling documentary are eloquent testimony to the darkness and light inherent in those words.