In what year was 'Poltergeist' released?

In what year was 'Lethal Weapon' released? Who directed 'The Omen' (1976)? In what year was 'The Omen' released? Who directed 'Poltergeist' (1982)? Who directed 'The Texas Chain Saw Massacre' (1974)? In what year was 'The Texas Chain Saw Massacre' released? Who directed 'Tron' (1982)? In what year was 'Tron' released?