War for the Planet of the Apes broader inspirations from films like "The Bridge on the River Kwai" and "The Great Escape". Feeling that there was a need to imbue Biblical themes and elements, they also watched Biblical epics like "Ben-Hur" and "The Ten Commandments". The influences and inspirations were made evident in the relationship between Caesar and Woody Harrelson's Colonel, a military leader with pretensions toward godhood. Reeves has compared their relationship to the dynamic between Alec Guinness's British Commander and Sessue Hayakawa's prison camp Colonel in "Bridge on the River Kwai". Another comparison is in Caesar's journey to find the Colonel, flanked by a posse
The Bridge on the River Kwai Railway. Their roles and characters, however, are fictionalised. For example, a Sergeant-Major Risaburo Saito was in real life second in command at the camp. In the film, a Colonel Saito is camp commandant. In reality, Risaburo Saito was respected by his prisoners for being comparatively merciful and fair towards them. Toosey later defended him in his war crimes trial after the war, and the two became friends. The major railway bridge described in the novel and film didn't actually cross the river known at the time as the Kwai. However, in 1943 a railway bridge was built by Allied POWs