They're extremely intelligent. Highly evolved. And they don't like sharing the planet.

In post-apocalyptic England, an American volunteer and a British survivor team up to fight off a brood of fire-breathing dragons seeking to return to global dominance after centuries of rest underground. The Brit -- leading a clan of survivors to hunt down the King of the Dragons -- has much at stake: His mother was killed by a dragon, but his love is still alive.
In Reign of Fire, consciousness is carried by monsters and creatures — a plane of “dragon‑post‑apocalypse”. The story fights on E9/E14 of the E0–E14 reality ladder, compressing survival, extinction, species, conflict, rebuilding.
Films fighting at the same level of reality, about the same things.
The Day the Earth Stood Still (2008)E9/E14 · rare rung · survival
The Day After Tomorrow (2004)E14 · rare rung · survival
Pacific Rim (2013)E14 · rare rung · survival
Rise of the Planet of the Apes (2011)E14 · rare rung · species
Terminator Genisys (2015)E14 · rare rung · survival
War of the Worlds (2005)E14 · rare rung · survivalThe same preoccupations examined at another scale — one mind versus a nation.
Walking with Dinosaurs (2013)E6/E7/E8 · rare rung · conflict, survival
War for the Planet of the Apes (2017)E6/E11 · rare rung · species, survival
Species III (2005)E6/E10 · rare rung · species, survival
The Bear (1988)E6/E8 · rare rung · conflict, survival
Terra Formars (2016)E8/E13 · rare rung · conflict, survival
March of the Penguins (2005)E8/E11 · conflict, survivalOther films that move a human interior onto the same kind of thing.
The Monster Squad (1987)consciousness in monsters · monster‑invasion town
BloodRayne (2005)consciousness in monsters · vampire‑ruled gothic realm
I, Frankenstein (2014)consciousness in monsters · angelic‑demon war
R.I.P.D. 2: Rise of the Damned (2022)consciousness in monsters · afterlife law enforcement
Godzilla vs. SpaceGodzilla (1994)consciousness in monsters · kaiju showdown
Godzilla vs. Mechagodzilla (1974)consciousness in monsters · monster showdownThe same preoccupations carried by a different kind of thing — grief told through the dead, an animal, a machine.
Ice Age: Collision Course (2016)consciousness in animals · extinction, survival
Titan A.E. (2000)consciousness in aliens · conflict, survival
Bugonia (2025)consciousness in aliens · extinction, survival
Legion (2010)consciousness carried elsewhere · survival
I, Robot (2004)consciousness in machines · survival
Alien: Covenant (2017)consciousness in machines · survival