The Man Who Knew Too Much (1934) - poster - Dutch Gaumont-British poster for ''The Man Who Knew Too Much (1934)''.The Man Who Knew Too Much (1934) - poster - US Gaumont-British poster for ''The Man Who Knew Too Much (1934)''.The Man Who Knew Too Much (1934) - poster - Publicity poster featuring Peter Lorre for ''The Man Who Knew Too Much (1934)''.