This is a fantastic rare documentary featuring John Williams during his scoring of 'The Empire Strikes Back' (1979-1980). The film also includes footage from 'Close Encounters Of The Third Kind', 'Superman', 'Towering Inferno' and others!
And for more interviews and special features check out
// The Music Of John Williams via Animopus
view here: STAR WARS MUSIC BY JOHN WILLIAMS Part 4