For anyone old enough to remember the 1970s, the distinctive typeface of the Greenpeace logo summons up that era of buccaneering idealism and rock-star activism. But these days, what does it represent? British documentary-maker Jerry Rothwell has charted the organisation’s development in a film that is revealing, wry and unexpectedly emotional. His perspective is for the most part that of Robert Hunter, one of the founders who died in 2005. Hunter was a journalist for the Vancouver Sun in 1971 when he joined a group of like-minded individuals on a boat headed to the Alaskan waters around Amchitka Island where the United States Government was planning underwater nuclear tests. It was, as an early member Patrick Moore (an ecologist) observes, an exercise to “bear witness in the