"Master Hands" is a 1936 sponsored documentary film short which shows what work is like in a Chevrolet automobile factory. Credits include original music by Samuel Benavie, cinematography by Gordon Avil, and film editing by Vincent Herman. It was produced by the Jam Handy Organization, a pioneer in industrial film production.
Although this was originally a film that Chevrolet paid Jam Handy to produce, it now has a wider purpose than whatever it was intended for originally. We have a nice view of the American labor movement in the 1930s, particularly in the auto industry. Whether Chevrolet or Ford or anywhere else makes no difference, this really captures what it was like to work in such a place at the time... before the robots took over.