"The 1970s were a golden age for the Hollywood thriller. In 1968, the MPAA film rating system replaced the Hays Code of self-censorship, allowing for a greater degree of sex and violence to be depicted on screen. Similar restrictions were relaxed by the British Board of Film Censors across the pond, and in both countries a young, new generation of filmmakers was being given a chance to make movies. The fallout from Watergate struck a mood of paranoia that informed some of the most celebrated thrillers of the decade, such as "The Conversation," (1974), "The Parallax View" (1974), and "All the President's Men" (1976). "The French Connection" (1971), "The Taking of Pelham One Two Three" (1974), and "Three Days of the Condor" (1975) are other hallmarks of the period.
In a decade that produced so many classic thrillers, there are bound to be some great suspense films that are overlooked."