ABCs of Horror 3: “X” Is for X the Unknown (1956)

Paste’s ABCs of Horror 3 is a 26-day project that highlights some of our favorite horror films from each letter of the alphabet. The only criteria: The films chosen can’t have been used in our previous Century of Terror, a 100-day project to choose the best horror film of every year from 1920-2019, nor previous ABCs of Horror entries. With many heavy hitters out of the way, which movies will we choose?
There are times when one of these ABCs of Horror entries is tied inextricably to a past entry, so allow me to begin here by reposting the intro from our previous look at 1955’s The Quatermass Xperiment.
As the 1950s dawned, the U.S. film industry was mired in what was perhaps its longest drought of proper horror cinema, a true low point for the genre. Studios surmised at the time that post-war audiences had no interest in the hoary old monster movies and mad doctor stories that Universal had proliferated so readily throughout most of the 1940s, and were instead craving more “modern” tales that could reflect, on some level, the changed world that now existed in the nuclear age. Ultimately, it was the nascent science fiction genre that would give horror a route back into cinemas, via films like The Thing From Another World or The Man From Planet X in 1951, but the front half of the decade is still pretty fallow horror ground regardless, notable only for the rise of the “giant monster” movie via the likes of Godzilla and Them!. It wouldn’t be until the back half of the decade that more classical horror would return to prominence … and it wouldn’t be the U.S. leading the charge.
Across the pond, it was Britain’s Hammer Film Productions that would ultimately spearhead what turned into a global horror revival, as they embraced the spirit of the age in returning the old monsters to colorful life, rendering the likes of Frankenstein’s Monster or Dracula frightening once again in a new era of plunging necklines and lurid splashes of Eastmancolor blood. But before The Curse of Frankenstein or Horror of Dracula, there was The Quatermass Xperiment. This was the true genesis of what would quickly coalesce into “Hammer Horror,” an atmospheric melding of body horror and science fiction that embraced those newly “modern” post-war sensibilities while also laying a foundation for numerous sci-fi horrors to come.
And where the “Xperiment” of Dr. Quatermass left off, X the Unknown was waiting to continue its forays into Cold War paranoia and nuclear hypotheses. Arriving a year later, the film was written by Jimmy Sangster, who would go on to pen both Curse of Frankenstein and Horror of Dracula for Hammer, cementing his legacy in the horror genre. X the Unknown, on the other hand, deals with a more invisible (at least at first) menace, a being or consciousness from within the Earth itself, which eventually grows to monstrous scale in a conclusion that heavily presages the American release of The Blob two years later in 1958, albeit in atmospheric black and white.