Deadlock is a 1943 British crime film directed by Robert Haines and starring John Slater in a dual role as twin brothers. A quota quickie, it was listed on the British Film Institute's BFI 75 Most Wanted list of lost films and was subsequently rediscovered.

From Wikipedia (CC BY-SA 4.0).

On IJR

No public IJR answers mention Deadlock yet. As people ask about it and share their answers, they'll appear here.

Facts from Wikidata (CC0).

Overview

From Wikipedia (CC BY-SA 4.0).