You're Groovy, Charlie Brown: A Look at Peanuts in the 70's (2010)

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

Production

Warner Home Video