Question: Do director of film Key Witness (1947 Film) and director of film The Argyle Case (1929 Film) have the same nationality?
Sentence (from "D. Ross Lederman"): Starting out as an extra in Mack Sennett's Keystone Cops series, Lederman worked his way through the ranks of film production, and first made his mark as a second-unit director.
Relevant evidence: No