In his 20-year career, he has made more than 50 films for major broadcasters such as the BBC, Arte, ZDF and Al Jazeera, covering a wide variety of topics – from nomads in Tibet, the Hadza tribe in Tanzania and honour killings in Iraq to women’s education in Sierra Leone. His latest is a series of films on human behaviour, examining subjects such as consciousness, empathy and fairness through the lens of science and social science.