Film: Killing Floor (114 min) 1984

Producer-Writer: Elsa Rassbach, Director: Bill Duke (1985 Sundance Film Festival Special Jury Award)
One hundred years ago, a critical struggle was taking place in the slaughterhouses in Chicago to organize a union. This powerful dramatic film focuses on the Polish and African American workers and their conditions as they fight to overcome racism and class hate and greed, in order to build a union of black and white workers.
African American workers traveled to Chicago for jobs and the continuing struggles that led to race riots in Chicago in 1919.
Elsa Rassbach fought for PBS to do a series of films on working class history but this was the only one that was able to get funded. 

http://www.thekillingfloor-thefilm.com/index.html