If you loved Blackmail, try Saboteur
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Alfred Hitchcock, and they both carry the paranoid mood tag, and they sit in Thriller territory. If that's the register that drew you to Blackmail, the second film will land in a comparable space — through a different lens.
paranoid
What Saboteur is
Skilled riveter exiting Los Angeles under gunfire. A matchbook leads FBI and phony war-plant soldiers on a transcontinental chase. Hitchcock turns patriotism into paranoia before the auteur cuts the hero loose.

