In which year was 'Back to the Future' released?

In which year was 'The Godfather' released? In which year was 'E.T. the Extra-Terrestrial' released? In which year was 'Jurassic Park' released? In which year was 'The Matrix' released? In which year was 'Pulp Fiction' released? In which year was 'Toy Story' released? In which year was 'Psycho' released? In which year was 'Citizen Kane' released?