If you loved Leviathan, try Nightmare City
A bridge between a film you've already seen and one most people haven't. Nightmare City has roughly 3.1× fewer votes than Leviathan — 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
Theysit in Horror / Science Fiction territory. If that's the register that drew you to Leviathan, the second film will land in a comparable space — through a different lens.
What Nightmare City is
Radioactive wasteland autumn dusk sirens blaring deserted streets overrun with undead hordes a desperate reporter and his wife flee Umberto Lenzi directs a chaotic zombie apocalypse.

