There is a movie called Yank Tanks about Cubans maintaining cars from the ‘50’s, left there when communism took over. Because it is communist, people can’t simply buy parts, so most of the parts are hand crafted. The people crafting the parts can’t simply buy the material to do so because, again, the government controls what they can do, and because they are not recognized as auto repair, they are not allowed to possess the material. People search the beaches for washed up pieces of metal which the fabricators do an amazing job turning in car parts. But again, they are violating the law by making and selling parts, so get around that, they make parts for free for government officials, who in return they look the other way.
The movie was about the cars, but the look into communism was amazing.
https://www.imdb.com/title/tt0312048/
“The Lost City” is a good movie about Cuba after the Revolution.
I watched the “Yank Tanks” trailer, and I would like to see the entire film.