Donald Pleasance (in a pre-Bond appearance), used ROBOTS to serve food in his castle. This was in 1967 and today we use them in serving positions and call it AI. The movie moves along well with a fabulous cast of international stars and many "familiar" Italian actors known in that era. A somewhat believable story from start to finish. However, the escape across the river in the Car that is ALSO a Boat was taken directly from Richard Harrison's 1965, SECRET AGENT FIREBALL. They even used the river tunnels in much the same fashion. However, watch it if you like Euro-Spy movies.