How about celebrating Labor Day with some movies about labor!
Harlan County USA
The Wobblies (Doc on the IWW, the world-wide, non-trade-specific workers union. Includes a segment about an incident in which Washington State workers were murdered for organizing!)
Salt of the Earth
Matewan
Blue Collar (non-comedic acting from Richard Pryor, directed by Paul Schraeder!)
Norma Rae
The Organizer (Italian but about labor!)
Roger & Me
There's more, I'm sure, like
Gung Ho! But this should be a good start for you.