The Black Cat (1934)
Nominated by The-Social-Introvert, who describes this as "a great movie for Lugosi and Karloff to face off against each other for the first time. The film in genuinely creepy and atmospheric, and…
(Where there are comments next to a movie, they were provided by the Poll Board member who nominated the film.)
Vote in "Dusting Off Celluloid 1940s: Which Old Movie Would You Like to See?" here.