The official poster for Hammer Film Productions’ smash hit One Million Years B.C., which was painted by famed British illustrator Tom Chantrell, is one of the most famous pieces of promotional art to come out of the 1960s. You  see that just below. The piece above is also Chantrell's work. Dated 1965 and signed at lower right with his familiar  block printing, it would have been made the year before One Million Years B.C. premiered, which perhaps explains why Raquel Welch isn’t yet the focus of the art. Good decision, eventually putting her on the poster, but we like this one too, especially that not-quite-big-enough tiger skin the character is wearing. Too bad we never saw Welch in that.

As for the movie, you’ve all seen it, right? Well, if not, just know that it’s the ultimate Anglo-Saxon, lost world fantasy, with light-skinned humans running around in a Neolithic wilderness living off the fat of the land. The fact that the women have shaved armpits and hot bodies is a bonus. There’s a plot involving early man’s inhumanity to early man, mixed in with threats from various giant amphibians and some pretty convincing stop-action miniatures from efx guru Ray Harryhausen.

But of course Welch is the focus of the movie, and it’s a bit of surprise she ever agreed to star, considering she was already pretty well established as an actress. Credit her for career savvy, though—One Million Years B.C., complete piece of cream cheese that it is, made her the top sex symbol in the world. We’ll leave you with a still from the film, but trust us—it’s nothing compared to Welch in motion. One Million Years B.C. opened in Europe in late 1966 and premiered in the U.S. today in 1967.