A column about curious stories from the worlds of science, technology, and film. Today — a project that sat in Hollywood’s backlog longer than the term itself has existed: cowboys lassoing a live dinosaur. The idea was put on paper in 1941, shelved in 1942, its author died in 1962, and the premiere came in 1969. The Valley of Gwangi is not a curiosity from film history, but a chronicle of how a profession dies and rewrites its own legacy.
Willis O’Brien entered animation through a home experiment: a one-minute film about a caveman and a dinosaur, assembled from 960 individual frames. Producer Herman Wobber appreciated the persistence and put up five thousand dollars — and so The Dinosaur and the Missing Link: A Prehistoric Tragedy (1915) was born, taking two months of work. Then came a series of shorts for Edison, The Ghost of Slumber Mountain (1918), one of the first films to splice live actors together with animated models, The Lost World (1925), and the abandoned epic Creation, whose groundwork — metal articulated skeletons for models — migrated into King Kong (1933). A classic of the engineering world: the project gets killed, but the hardware migrates into the next release.
The peak and the beginning of the decline came together. In the late 1930s, O’Brien was carrying War Eagles for MGM — a fantasy about airships and riders on giant eagles over New York — and the studio abandoned the project. After Son of Kong (1933), he never managed to push through another expensive project of his own: the studio system did not like slow, costly techniques, and a lone animator did not scale.
And then there was the premise familiar to anyone who has seen Jurassic Park: Valley of the Mists. Cowboys find a hidden valley on a Texas mesa, populated by prehistoric reptiles, and bring a predator to town — as an attraction. A joint RKO and Colonial Pictures production: RKO president George Schaefer approved a budget of 552 thousand dollars, Ernest Schoedsack, co-director of Kong, was set to direct the live-action scenes, and Marcel Delgado sculpted the monster prototypes. Then two classic kill factors struck at once: RKO kept the project in development for a month and shut it down; soon afterward, the entire plan collapsed into the war. Footage shot — zero seconds.
What came next was the familiar reuse. In 1956, The Beast of Hollow Mountain came out: a cheap western about a reptile that used the armature from that very Gwangi puppet, while O’Brien received a co-writing credit on the script. Technical memory proved more durable than legal memory: the idea waited for a sponsor, while the hardware waited for nothing.
On November 8, 1962, O’Brien died in Los Angeles; his last working project had been Stanley Kramer’s comedy It’s a Mad, Mad, Mad, Mad World. But the student remained: Ray Harryhausen, who had once assisted the master on Mighty Joe Young and by the mid-’60s had become a brand in his own right after the triumph of One Million Years B.C. Harryhausen suggested to producer Charles Schneer that they revive two old projects by his mentor — War Eagles was rejected because its script material was unreadable, while the rights to Valley of the Mists were bought from O’Brien’s widow.
Columbia, which had made all their previous films together, said no — Warner Bros.-Seven Arts provided the financing, and Jim O’Connolly became director. And here is the crucial detail, the reason it is worth reading the credits: O’Brien’s name is not in the film. The author of the idea remained like legacy code without a comment in the README — the system works, authorship is credited nowhere.
The setting was moved to the turn of the 19th and 20th centuries — Harryhausen explained it plainly: to cut out the cliché of “the army rolls in with tanks and rockets.” An era without radio or helicopters is the only one in which a lasso remains a legitimate technology for catching a tyrannosaur.
Filming took place in Almería and Cuenca. The Tabernas Desert played the Mexican mesa; the fantastic stone mushrooms of Ciudad Encantada Natural Park became the forbidden valley; the Plaza de Toros in Almería was the show where the captured Gwangi was exhibited for money; and the finale was Cuenca Cathedral, whose lower half was real, while the upper half, burning, was a miniature combined through double exposure.
The effects took nearly a year: more than three hundred composites using the signature Dynamation technique — a Harryhausen record. The mechanics of that very lasso scene deserve a separate read: the actors hold ropes tied to a “monster stick” in the bed of a jeep; the jeep and stick are hidden behind the dinosaur’s body by rear projection; the bits of rope on the puppet are painted wires, matched to real ropes. Motion capture by hand, in reverse: first the physics, then an enormous amount of paperwork masking the seams.
Production’s engineering curiosities: the rider’s leap from a forty-foot tower was played by a toy horse from an ordinary store (the splashes in the tank were real, triggered by an electric detonator); in one long shot of the chase after an Eohippus, a kid goat was filmed instead of a puppet; the Styracosaurus had an inflatable bladder inside it — after the fight, it “breathed” heavily. Harryhausen wanted an elephant fifteen feet tall for the fight, but the largest in the world turned out to be two feet shorter, so animation replaced it in the battle, while the living eight-foot elephant remained in the prologue with the rider. The Pteranodon was sculpted with bat-like wings, while the boy it abducted was lifted on wires painted the color of the sky — at altitude, the child was replaced with a puppet.
As for the species taxonomy: in O’Brien’s script, Gwangi is an Allosaurus, but the model was sculpted after Charles Knight’s famous painting, in which the Tyrannosaurus is depicted with an eye set too close to its nose — early-century paleontology was reading skulls from fragmentary finds. Harryhausen summed it up in a DVD interview with the stony calm of a livestock breeder: “We sometimes called him an Allosaurus... They’re both predators, both tyrants... one is just a little bigger than the other.”
By the premiere, the studio had changed owners: Kinney had absorbed Warner Bros.-Seven Arts, and the new management had no intention of mobilizing for someone else’s legacy. “They didn’t know how to sell our films the way Columbia did,” Schneer admitted. The picture was released with almost no advertising as part of a double bill — paired with a biker movie; a marketing match in which both audiences were guaranteed to miss the target. Harryhausen summed it up bitterly: “They just threw the picture onto the market. Many who would have loved it never even knew it was playing.” The New York Times responded in September 1969 with something along the lines of “a routine monster-movie hodgepodge.” The title, incidentally, was imposed by the studio — Harryhausen wanted The Valley Where Time Stood Still.
The failure was so thorough that Schneer and Harryhausen’s next film did not arrive until 1973 — The Golden Voyage of Sinbad, back at Columbia. Four years of a cold start after one bad theatrical run — that is the real cost of departmental mergers in any industry. The backdrop adds irony: 1969 was the final season of the classic western, a genre being squeezed out by television and the spaghetti expansion. Gwangi did not merely arrive at a bad moment — it arrived at a bad moment for its own genre.
The comeback came twice — slowly and quickly. Slowly: cult status, 73% freshness on Rotten Tomatoes, and the first decent HD release only in 2017, from Warner Archive. In its 2013 obituary, The Guardian remembered the master to the industry, among other things, for “dinosaurs fighting cowboys.” Lucas put it plainly: “There would have been no Star Wars without Harryhausen.” Peter Jackson added: “The Lord of the Rings is my Ray Harryhausen movie.”
And then, quickly. In Jurassic Park (1993), Spielberg quoted the scene where Gwangi rises over a hill and snatches a fleeing ornithomimus. The real irony goes deeper: Park was initially planned as stop-motion, with Phil Tippett — a direct professional grandson of the same school — set to handle the inherited technique. After the first CG test, the plan was rewritten: less than a year remained before release. ILM’s final accounting is candid: six minutes of computer dinosaurs, spliced together with nine minutes of Stan Winston’s mechanical puppets. Six minutes that closed down a profession.
But look at what happened to the stop-motion team: it was not disbanded — it was migrated. Tippett’s animators equipped classic armatures with motion sensors, and the Tondreau Go-Motion system translated frame-by-frame trajectories into digital data for computer models in Softimage — at ILM, they would later call it a bridge between analog craftsmanship and the digital frontier. Essentially, the first major migration project between the old and new stacks, with key engineers recruited from the system being shut down. The O’Brien → Harryhausen → Tippett line did not break — it changed medium.
In 1992, the Academy finally gave Harryhausen the Gordon E. Sawyer Award — a lifetime “Oscar” for technological contribution; the award was presented by Tom Hanks and Ray Bradbury, his friend since youth. A fitting gesture from an industry that by then had not commissioned his craft for a quarter of a century, and that twenty-one years later would record his death in London at the age of 92.
What I especially like about this story is the arithmetic. O’Brien’s first experiment — 960 frames and five thousand dollars of someone else’s money in 1915. Fifty-four years later, his student assembles a record three hundred composite shots in a single film. Another 24 years later, six CGI minutes zero out the very need for such records. Dinosaurs — like technologies — do not go extinct from old age, but from a changing habitat. Yet the skeletons survive: in 2017, Warner Archive finally released Gwangi on Blu-ray, and the puppet that had stood in a box since 1942 stepped into the arena again.
Sources: Wikipedia — The Valley of Gwangi (production, effects, locations, release, NYT 04.09.1969); SF Encyclopedia — Willis H. O'Brien (biography, 1915–1962, “Gwangi” 1942); Black Gate — The Valley of Gwangi Finally Reaches Blu-ray (project history, Kinney, working title, pause until “Sinbad”); ILM — Breathing Life into the Dinosaurs of Jurassic Park (plan change, go-motion bridge, 6+9 minutes); Wikipedia — Ray Harryhausen (Sawyer-1992, Hanks and Bradbury); The Guardian — Ray Harryhausen obituary (2013, Lucas and Jackson quotes); K. Delahoyd, WSU — The Valley of Gwangi (plot details).