Only the River Knows (2012) 2012, Denmark, Documentary, Drama, Sport Only the River Knows (2012) Duration: 1H24M Description: The main part of the film takes place by the legendary Lethe River on New Zealand’s wild and wondrous South Island. Back in 1988, one of the most iconic fly fishers of our time, Lars Lenth, spent three months exploring the fabled ….. Trailer ↗ Denmark 2012 Documentary Drama Sport