My personal favorite John Barry score is from what is for me a "guilty pleasure" movie (but hey, it's a guilty pleasure for a lot of people): Walt Disney Picture's seductively disturbing 1979 science-fiction film The Black Hole. For whatever other... issues... that movie has, Barry perfectly captured the sinister brooding mystery of the U.S.S. Cygnus: a long-lost ghost ship teetering on the brink between reason and madness in a place where normal physics lose all meaning.
Here's the write-up at Entertainment Weekly's site about John Barry, his life and his long career. He will be missed.