 Complete the following phrase:  The films director, himself an IDF veteran who was stationed in Lebanon during the first Lebanon war, uses the stone walls of Beaufort castle as a symbol of the futility and endlessness of war. The film was shot during the spring of 2006 at Nimrod Fortress, a similar mountaintop fort in the Golan Heights. Cedar said he was influenced by the film Das Boot, and the World War I bunker films, when creating the tunnels and mazes of the Beaufort. He also said that Paths of Glory was a heavy influence, specifically on the bomb-disarming mission scene. Useful historical information for understanding the movie can be found in the article on the original 