Jim Ripple's Robots

A Soviet sci-fi / social satire movie, loosely based on Čapek's R.U.R., 1935:

Jim Ripple is an inventor of industrial automatons, guided by the sound of saxophone.
He hopes his invention will help to destroy Capitalism.

But vicious capitalists use robots to fire and oppress 'live' workers. Jim is killed in a riot.

Class-conscious workers re-program Jim's steel monsters and use them against their oppressors. Robots dancing in the streets: revolution, revolution has come!

Via nicolya @ Dieselpunks LJ community