From Wikipedia, the free encyclopedia. Jan Gustaf Troell (born 23 July 1931) is a Swedish film director. Usually, Troell writes his own scripts and serves as his own director of photography. His realistic films, with a lyrical photography in which nature is prominent, have placed him in the first rank of modern Swedish film directors along with Ingmar Bergman and Bo Widerberg. Description above from the Wikipedia article Jan Troell, licensed under CC-BY-SA, full list of contributors on Wikipedia​