Best Crime Movies and Thrillers That Were Released Before 1970

Being a huge fan of Thrillers & Suspenseful movies, Psycho is one of my favorite movies of all time, the plot and storyline was very engaging, and even more engaging was the lead actor Anthony Perkins' top-notch and hypnotizing performance, I could barely take a breath of fresh air during the climactic phase of the movie and was watching the entire movie on the edge of my seat.