I was randomly reminded of the amazing aspects of the opening scene of Saving Private Ryan today. I remember when I first saw it, I was struck by the genius of the following sound design:
When a bomb went off near the camera, the audio would go almost silent, like the viewer were temporarily deafened (along with the characters), and there would be a slight ringing sound, which then grew louder and then the audio would come back in a rush.
Saving Private Ryan is the first movie I ever saw to use that technique. Is it actually the first movie to feature it? It certainly seems to have popularized the concept, as I've since seen it in many movies and TV shows.