He did not mention polarizers (except for the negative effect they might have when used in variable NDs)
I have a circular polarizer for every lens, be it photo/stills lens or video lens. I even have circular polarizers for all my eng 2/3" lenses at work. I like nice landscapes with beautiful skies, and a polarizer can really make these images pop.
Almost every time I shoot some of the footage with a polarizer, people will go "oh, nice!" when they see the shot - even when they don't have a clue what makes those shots pop out.
I'd definitely add a polarizer to my essential filters bag, no matter what camera or lens!
...speaking about sound guys... where was the sound guy on this? ;)
It looks like everybody was having a lav mic, so why are the levels so awfully different? If they had just set every mic to auto it would probably have been better than this!