**_Serious jungle adventure with mature themes in the wilds of Borneo_** In the mid-1950s, a pompous American & his wife (Keith Carradine and Paris Jefferson) hire dubious guides to go up a river in search of diamonds in Sarawak. Meanwhile a haunted Korean War veteran (Billy Zane) keep an eye on them with his native protégé. "The Diamond of Jeru” (2001) originated from an unfinished 1950s' story by Louis L’Amour, completed by his son Beau and used for this movie (eventually published in audio form in 2015). While I suppose it’s comparable to Indiana Jones movies and, especially, David Ke...