If you've seen the "Green Book" then you have got to see this documentary, but even if you missed the film, this hour documentary will be of some interest. It tells the story of the emergence of the black middle class and their journeys in cars outside their own towns/cities. In the 1940s and 1950s this was a perilous journey, so a black man named Green started a book that let black people know where they could eat, drink, shop, and (most important) stay over night. Over time the book changed just as society changed, and thankfully there came a time when the book was no longer necessary. But in the interim, this documentary takes you to some of the places where history was made and gives you some detailed biographies about people who were brave enough to fight against the prevailing sentiments and make the world better for everyone.