If you loved The Island of Dr. Moreau, try Prophecy
A bridge between a film you've already seen and one most people haven't. Prophecy has roughly 3.9× fewer votes than The Island of Dr. Moreau — 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 John Frankenheimer, and they both carry the dread mood tag, and they sit in Horror / Science Fiction territory. If that's the register that drew you to The Island of Dr. Moreau, the second film will land in a comparable space — through a different lens.
dread
What Prophecy is
Fog-shrouded forest, summer, chainsaws roar. Logging equipment and tribal canoes face off. A product of 70s eco-horror.

