The Black Cat

• Shot in under three weeks on a budget of about $95,000, The Black Cat became Universal's biggest box-office hit of 1934.
• Boris Karloff was paid $7,500 for the four-week shoot while Bela Lugosi took home just $3,000 — despite Lugosi getting top billing, a pay gap that fed the real-life resentment between the two stars.
• The film narrowly beat Hollywood's Production Code crackdown, which didn't kick in until July 1, 1934 — two months after this released. It still wasn't clean: the Hays Office and state censors forced cuts (the flaying scene, a cat-killing shot, corpse imagery), and Universal destroyed the excised footage per the era's practice, permanently losing a rape scene, a more graphic evisceration, and a subplot where the black cat's soul possesses Joan.
• The film bears almost zero resemblance to Edgar Allan Poe's 1843 short story of the same name. Universal owned the rights to Poe's catalog and slapped the title onto director Edgar G. Ulmer and writer Peter Ruric's original script purely for marquee value.
• Karloff's character, Hjalmar Poelzig, borrows his surname from real German architect Hans Poelzig, whom Ulmer claimed to have worked alongside on the sets of the 1920 silent film The Golem.
• This was the first of eight films that paired Karloff and Lugosi together, kicking off one of horror's most famous on-screen double acts.

Werdegast and Poelzig play as two halves of the same shattered psyche — both WWI veterans, both fixated on the same woman, both trapped by the same fifteen-year-old betrayal. The film reads as a hallucinated self-confrontation between a man's trauma and his monstrous survival instinct, with the newlywed Alisons standing in for a normalcy Werdegast can no longer reach.

Joan Alison isn't a random victim of circumstance — she's a stand-in for Werdegast's dead wife, whose embalmed body Poelzig keeps on display just rooms away. Poelzig's sudden fixation on Joan, and Werdegast's immediate, almost instinctive protectiveness over a woman he just met, plays as both men recognizing an echo of the wife Poelzig destroyed.

The black cat Werdegast kills isn't just an animal — it's a familiar, and Poelzig's entire estate functions as a warding system tied to his occult practice. When Werdegast kills it, he breaks whatever's holding the place together, which is why the fortress comes down so completely once the demolition charges go off — the explosion reads as much like a release as an act of sabotage.

Newlyweds Peter and Joan Alison end up sharing a night train through Hungary with Dr. Vitus Werdegast, a psychiatrist just released after fifteen years in a Siberian POW camp. When their bus crashes near Werdegast's destination, the group takes shelter at the stark modernist fortress of Austrian architect Hjalmar Poelzig — built on the ruins of the WWI fort Poelzig commanded and betrayed to the Russians, an act that got Werdegast imprisoned and cost thousands of soldiers their lives. Poelzig also told Werdegast's wife and daughter he was dead and took them for himself; Werdegast discovers his late wife's embalmed body posed behind glass in Poelzig's cellar, part of a private collection of preserved women. With a black mass and a sacrifice planned for Joan that same night, Werdegast and Poelzig settle her fate over a game of chess. It ends with Werdegast flaying Poelzig alive and detonating the fortress's leftover military demolition charges, wiping out Poelzig's cult as the newlyweds escape.