Success was so great that there were several movies. These included "To Trap a Spy" (1964), "The Spy with My Face" (1965), "One Spy Too Many" (1966), "One of Our Spies is Missing" (1966), "The Spy in the Green Hat" (1966), "The Karate Killers" (1967), "The Helicopter Spies" (1968), "How to Steal the World" (1968).