I thought I’d put this up today.
“Don’t Be a Sucker”, a War Department film from 1947. Don’t judge it based on the first few minutes: it isn’t about rigged card games or other cons.
Bonus: “I Am Not Alone”. From 1956, and I believe this is an episode of the “Telephone Time” series.
This film documents the personal experiences of a former Moscow prison inmate, who described the psychological torture methods used to try to extract a confession.