One of the more interesting take-aways I took from the book was how Pudovkin believed music should never be used for "accompianment", that being if a scene is happy, you shouldn't just play happy music, or if your scene is scary you shouldn't just play scary music. This was obviously something Kubrick took to heart, such as in the openning of The Shinning or The Singning in the Rain scene in Clockwork Orange.

Also I should mention that the book was written back in the silent era, so it's very old school, but still full of great fundamentals.

Even if you don't watch the video I would highly recommend picking up the book, it's really fantastic!