Neotpravlennoye Pismo (Letter Never Sent) is survival cinema at its most visceral. Kalatozov and Urusevsky turn the Siberian wilderness into a living force, and the camera becomes a fifth member of the expedition—slipping through forests, collapsing with bodies, shaking in blizzards, and diving into fire and ice with impossible fluidity. The brilliance of the film is how the visuals feel like survival. The camera isn’t observing danger; it’s enduring it. Every frantic handheld shot, every wind-lashed close-up, every dizzying movement mirrors the characters’ fading strength. As hope drains a...