If you loved X: The Man with the X-Ray Eyes, try Attack of the Crab Monsters
A bridge between a film you've already seen and one most people haven't. Attack of the Crab Monsters has roughly 3.1× fewer votes than X: The Man with the X-Ray Eyes — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Roger Corman, and they sit in Horror / Science Fiction territory. If that's the register that drew you to X: The Man with the X-Ray Eyes, the second film will land in a comparable space — through a different lens.
What Attack of the Crab Monsters is
Tropical island. Radio crackle. Researchers arrive, chasing fallout science, just as their plane vanishes in a ball of fire. Something lives in the caves, growing smarter, angrier, larger. Roger Corman knew where to find atomic nightmares.
Ask 
ChatGPT
Claude
Grok
Le Chat
Perplexity
for a deeper bridge
ChatGPTClaudeGrokLe ChatPerplexity