5 Best Sci-Fi Dinosaur Movies That You've Probably Never Heard Of

"Jurassic Park" will go down not only as one of the best science fiction films of all time, but as one of the best dinosaur flicks ever made. It spawned an ever-growing franchise, alongside video games, toys, and books. While the Michael Crichton adaptation is what comes to mind when thinking of a quintessential dinosaur movie, others like "The Land Before Time," "The Good Dinosaur," and even some with more outlandish premises like "The VelociPastor" provide plenty of fun for audiences of all ages.

However, amid a sea of options, there are some truly amazing films that aren't always considered top of mind. Dinosaurs on the big screen aren't a new premise, and some of the best depictions come from the early to mid 1900s, even as far back as 100 years ago. They aren't always the ones you might think of, but these projects have great special effects, interesting narratives, and continue to stand the test of time. Even though you've probably never heard of some, these dinosaur movies are a must watch for fans of the genre.

A 1969 film, "The Valley of Gwangi," combines the best elements of both westerns and dinosaur movies to create an awesome film. Horace Bromley (Laurence Naismith), a paleontologist working in Mexico, recognizes a horse in the local rodeo as a prehistoric species — one that shouldn't still exist. What he finds in his inquiry is a special place where thought-to-be-extinct animals live, including a deadly Allosaurus and Pteranodons.

As a 1960s flick, it might not be on everyone's radar, but it should be. The stop-motion animation is well done for the time, and the use of a variety of dinosaurs instead of a reliance on a T. Rex to drive the plot, is a refreshing change of pace from modern entries in the genre. With the underlying western tone, particularly as the catalyst of the story is a rodeo, it puts prehistoric animals in the wild west instead of a green forest, and the change of scenery is great.

The movie has a 73% from critics on Rotten Tomatoes. Fans of "The Valley of Gwangi" love the stop-motion animation, with many believing it's some of special effects artist Ray Harryhausen's best work. "The special effects are amazing in this film," Reddit user FloridaPanther wrote. "It's great to see how FX were experimented with at the time." Audiences are open to a remake of the movie, but "only if it kept the '[H]arryhausen' style of dinosaurs," according to Reddit user Numerous_Wealth4397.

Based on the 1912 book by Arthur Conan Doyle, "The Lost World" is a silent film following dinosaurs living in remote parts of South America. After an expedition in the area goes missing, a discovered journal suggests dinosaurs still exist, though nobody believes it's possible. Of course, the only thing to do is go to the area and see the prehistoric animals for themselves.

While many may know of the 1960 adaptation of Doyle's book, the 1925 version is vastly superior. Not only does it do a better job of adapting the source material despite being a silent film, but it's considered an important piece of cinema history. In 1998, "The Lost World" was added to the National Film Registry, the section of the Library of Congress that preserves great American movies.

"The Lost World" boasts a 100% from critics and a 69% from audiences on Rotten Tomatoes. Reviews highlight the quality of the special effects and how timeless the story is, despite now being over a century old. "The main attraction, however, is Willis H. O'Brien's pre-King Kong stop motion monster effects," Kim Newman wrote for Empire.

"Journey to the Beginning of Time," also known as "Cesta do pravěku," is a 1955 film from Czech director Karel Zeman. It's about a group of teens taking a boat down a river, which brings them back in time via cave portal. Their goal was to find a trilobite, but thanks to time travel, they interact with even more ancient life than they intended. If you aren't a fan of subtitles, there is a 1966 English dub you can watch, though it does have some of the scenes removed.

Like "The Lost World" and "The Valley of Gwangi," Zeman's movie uses stop-motion animation for the dinosaurs the teens run into as they float along. Unlike other films in the genre, where the audience follows the action alongside the main characters, the 1955 project takes a step back, making it feel like you're watching them from the bushes. Reddit user Matt_has_Soul describes it as "very voyeuristic," like "you just happen to be a bystander that is watching from afar." It makes for a different viewing experience compared to a standard dinosaur flick.

"Journey to the Beginning of Time" has a 74% from audiences on Rotten Tomatoes. Fans rave about how good the special effects are for the time, with Rotten Tomatoes user Phil H. calling the director "the European equivalent of Ray Harryhausen."

Dinosaurs and cavepeople live side by side in 1965's "One Million Years B.C." Different situations play out between two different groups of humans, with someone exiled from their original home, all while dinosaurs sometimes get in the way. If they aren't roaming nearby, they're fighting or trying to capture a human as food. Basically, it's everything you'd expect if we actually lived alongside dinosaurs.

Is the plot rooted in historical accuracy? No, and that's what makes it fun. "One Million Years B.C." isn't concerned with trying to make the animals perfect, it's just a movie filled with action and intrigue, following human problems in a dinosaur-filled world. While it is a remake of a 1940 film, this is the one to watch. Ray Harryhausen did the special effects, which still hold up today.

With a 69% from critics on Rotten Tomatoes, "One Million Years B.C." is a dinosaur flick you should be watching, even if you've never heard of it. Like other movies on this list, the special effects are a highlight, and reviews mention the cinematography as one of the best parts. "The cinematography is gorgeous," Reddit user Mgellis posted in the r/horror subreddit. "And, of course, Ray Harryhausen's genius is on full display."

"The Beast from 20,000 Fathoms" features a bomb test which releases a frozen Rhedosauru back into the world. However, no one believes the sole witness, Professor Nesbitt (Paul Christian), until the dinosaur migrates from the Arctic to North America. Nesbitt gathers a team to follow it, but they aren't the only ones after the prehistoric animal.

The 1953 movie has a bit of everything from the science fiction genre: something in suspended animation, nuclear weapons, a dangerous virus, and death by radiation, all with aggressive military involvement. It should also come as no surprise to hear that Ray Harryhausen is behind the special effects of "The Beast from 20,000 Fathoms" — it's actually his first feature credit. His version of the Rhedosaurus is credited as helping pioneer monster films for decades to come.

The movie sees a 68% from audiences on Rotten Tomatoes. In addition to the strong special effects, fans enjoy how well the themes aged. "The themes of atomic tests and science in general work really well, the way its handled really makes the film feel grounded with its themes," Reddit user entertainmentlord wrote.