In which year was 'Psycho' released?

In which year was 'The Matrix' released? In which year was 'Back to the Future' released? In which year was 'Pulp Fiction' released? In which year was 'Toy Story' released? In which year was 'Citizen Kane' released? In which year was 'Forrest Gump' released? In which year was 'The Dark Knight' released? In which year was 'Avatar' released?