I Know That Voice on Netflix.
It's about voice acting. It was fascinating to see how everything works, processes of the actors, hearing about the voice acting vs live acting. Hell, just seeing the actors' faces was awesome.
It was cool to watch them in action and see all the different characters they do. Sure you could learn all this stuff on IMDB, but you'd spend days searching for actors and going through their work, and you wouldn't get to hear anything from them.
I recommend.