My Bloody Valentine

• Shot on location in Sydney Mines, Nova Scotia, in and around the real Princess Colliery (closed 1975), on a budget of roughly CA$2.3 million. The production had to spend about $75,000 dirtying the mine back up after proud locals cleaned and painted it when they heard a movie was coming.
• The MPAA demanded cuts to every single death scene to secure an R rating—producer John Dunning said the film was 'cut to ribbons,' with a reported nine minutes of gore excised. The most infamous casualty was the extended version of Sylvia's shower-pipe impalement.
• Paramount, the studio that distributed 'Friday the 13th,' bankrolled the Canadian production specifically to cash in on the holiday-slasher wave—and on a calendar quirk: in 1981, Friday the 13th of February fell the day before Valentine's Day. The film hit theaters February 11, 1981, to catch both.
• The gore effects were designed by Thomas R. Burman and Ken Diaz. Burman was a protege of John Chambers, having worked under him on the ape makeups for the original 'Planet of the Apes' (1968), and later did the effects for 'Halloween III: Season of the Witch' and earned an Oscar nomination for 'Scrooged.'
• The killer's miner outfit—coveralls, gas mask, and hardhat with headlamp—became one of the most iconic slasher looks of the era, and Patrick Lussier's 2009 3D remake kept the same basic mining-gear-and-gas-mask design for its killer.
• A truly complete uncut version has never been released. Lionsgate's 2009 special edition restored roughly three of the reported nine cut minutes (director George Mihalka has said plenty is still missing), and Scream Factory's 2020 Blu-ray gave both cuts a new 4K scan, pulling most of the restored gore from the original negative for the first time.

The film reads as a blue-collar revenge fantasy against management. Every authority figure who enabled the original disaster or tried to suppress its memory becomes a target, while the working-class miners are caught in the crossfire. Harry Warden isn't just a slasher—he's the town's repressed conscience, enforcing the guilt Valentine Bluffs tried to bury.

T.J. and Axel aren't just rivals for Sarah—they represent two futures for the town. T.J. is the prodigal son who left and came back broken; Axel is the man who stayed and went hollow. The killer's identity reveal forces the question of which kind of survivor a dying town produces, and the answer is bleak either way.

The miner's gear functions as an erasure of identity that mirrors the town's own. Valentine Bluffs has no future, just a mask it puts on once a year to pretend otherwise. The killer wearing that same outfit to slaughter people at the dance is the town's own denial coming back pickaxe-first.

Valentine's Eve in the dying mining town of Valentine Bluffs means a party—and the first one in twenty years, since a methane blast trapped a crew of miners because the supervisors skipped out to the dance. The sole survivor, Harry Warden, stayed alive by eating the dead men and swore vengeance. Now, as the town readies its celebration again, a pickaxe-wielding killer in full miner's kit starts carving through partygoers and authority figures alike. Police chief Newby and T.J. Hanniger—the mine owner's son, back home after washing out on the west coast—try to stop the carnage, but Harry Warden's legacy—and the town's guilt—won't die easy. Somebody wants hearts, and not the candy kind.