Watch The Man Who Knew Too Much (1956) (1956) HD Full Movie Free on SolarMovie. Watch The Man Who Knew Too Much (1956) (1956) online free. An American doctor and his wife, a former singing star, witness a murder while vacationing in Morocc...An American doctor and his wife, a former singing star, witness a murder while vacationing in Morocco, and are drawn into a twisting plot of international intrigue when their young son is kidnapped.