Born 1966 in Bern/Switzerland as the son of actress Elisabeth Trissenaar and director Hans . First encounter with film-industry 1982 as production assistant for the feature Penthesiliea. He worked several years as camera assistant and operator for R.W. Fassbinder's former DP Xaver Schwarzenberger and Wim Wenders close collaborator Robby Mueller. In early years he founded his own low-budget orientated production company Giselafilms Berlin. Since his study at the german film and television schoo ...