Human fear of technology is portrayed in this very amusing futuristic parody. Preserved by the Academy Film Archive in 2013.

Mel Blanc
as Various (voice; uncredited)
CinemaSerf
Six besuited employees are working away at their desks until one keels over from exhaustion. Next thing, the boss has opened a trap door. Gone is the worker and in comes a robot. Curiously still working with a pencil it, and it’s colleagues, are soon able to outperform the remainder of the increasin...