There's a wonderful short film "Cooperage" made by Phillip Borsos back in 1976. It won the Canadian Film Award for Best Theatrical Short. For some reason (rights problems?) it isn't available online or on DVD. But it's really terrific. It all takes place in a family run cooperage that's been around forever, with the line shaft in the ceiling and drive belts coming down to the machines. I saw it in a musical instrument-making class back in about 1985. I would love to see it again.