It’s as much fun as you’re going to have in a movie theater this year.
So much began and changed with Toland's eye and his camera. This film is short but remarkably comprehensive. The sequence rehearsing the low-angle shot in "Citizen Kane" is invaluable, even though I knew by reading how it was done. This is one of the most useful seven minutes I've ever spent learning about cinematography.
Many thanks to Marie Haws for this video find.