Here's a nice little piece on Brent Green.
"Gravity Was Everywhere Back Then" screened last week at The Kitchen.
On second screening it was no less powerful than the first. This time we were treated to live accompaniment and Mr. Green's live narration -with only a few stray lines not in the film's script.
The effect of the film is largely musical. It's a roll of tones and tempos with finishes in a great crescendo (and denouement).
I've long believed that film was a visual approximation of music. Here we have symphony.