Secret Agent Fireball
Le spie uccidono a Beirut (literally, The Spies kill in Beirut, also titled Da 077 : le spie uccidono a Beirut, i.e. Message from 077 : the spies kill in Beirut) is a 1965 Italian/French international co-production spy film pertaining to the Eurospy genre.
When a series of scientists are killed, Bart Fleming Secret Agent X-177 travels to Hamburg and Beirut to discover that Soviet Agents are killing the scientists. Both sides want the information the scientists took with them when they escaped from the USSR; a roll of microfilm containing information about the Soviet H-Bomb. The only link left to the film is a daughter of one of the scientists.