Walls of Hell (1964) WWII Action Drama | Jock Mahoney, Fernando Poe, Jr. | aka Intramuros

This gritty, atmospheric war movie dramatizes a chapter of World War II history in which 10,000 Japanese soldiers, fearing execution if they surrendered, disobeyed their own superiors' orders and barricaded themselves in Manila's Intramuros section along with a thousand or so unfortunate civilians.