This documentary wisely focuses on Charles Schulz himself: his favorite kind of pen, why he is so good at drawing rain (which is a byproduct of his favorite kind of pen), and how his family life seeped into the strip. Features interviews with family, colleagues, and Schulz in archival footage
Sorry, but for now we weren't able to find movies like You're Groovy, Charlie Brown: A Look at Peanuts in the 70's.