I was 7 years old in 1977. My mother worked at the Odeon in Newcastle, and during the summer school holidays I used to have to go to work with her and hang around behind the scene or wactching a film.
I saw Star Wars so many times that summer, and the Odeon had a huge screen in those days (used to seat 1200 or so with an upstairs and downstairs).
man, that opening scene withthe Star Destroyer chasing down the Tantive IV was burned into my brain 