This is a documentary that's included with the Our Gang mega-set of eight DVDs. This in on disc eight--the Bonus disc. It's a relatively short film of under 30 minutes--which just isn't enough considering that the series went for for over 20 years (if you count the films later made by MGM after the series was sold by Hal Roach Studios).
Style and Substance: Norman Jewison and Hal Ashby
2019
Anatomy of Death Scenes
2017

In Conversation With Director John Waters, Actress Kathleen Turner and Actress Mink Stole
2016
Making of The Russians are Coming
2015

A Tribute to Laurel & Hardy
2011