Hellboy Movies: Release Order
The Hellboy franchise follows a demon summoned by Nazis during World War II who is rescued and raised to become humanity's defender against supernatural threats. Based on Mike Mignola's Dark Horse Comics character, the series has seen multiple attempts to bring the paranormal investigator to the screen.
The franchise began with Guillermo del Toro's duology starring Ron Perlman, which combined gothic horror, pulp adventure, and heartfelt character relationships. After these films, the franchise has been rebooted twice with standalone films in 2019 and 2024, each offering different interpretations of the character with no connection to previous entries.
There is 1 other watch order available - see the link up above.

Hellboy
In the final days of World War II, the Nazis attempt to use black magic to aid their dying cause. The Allies raid the camp where the ceremony is taking place, but not before they summon a baby demon who is rescued by Allied forces and dubbed "Hellboy". Sixty years later, Hellboy serves the cause of good rather than evil as an agent in the Bureau of Paranormal Research & Defense, along with Abe Sapien - a merman with psychic powers, and Liz Sherman - a woman with pyrokinesis, protecting America against dark forces.

Hellboy II: The Golden Army
Hellboy, his pyrokinetic girlfriend, Liz, and aquatic empath, Abe Sapien, face their biggest battle when an underworld elven prince plans to reclaim Earth for his magical kindred. Tired of living in the shadow of humans, Prince Nuada tries to awaken an ancient force of killing machines, the all-powerful Golden Army, to clear the way for fantasy creatures to roam free. Only Hellboy can stop the dark prince and prevent humanity's annihilation.

Hellboy
Hellboy comes to England, where he must defeat Nimue, Merlin's consort and the Blood Queen. But their battle will bring about the end of the world, a fate he desperately tries to turn away.

Hellboy: The Crooked Man
Hellboy and a rookie BPRD agent get stranded in 1950s rural Appalachia. There, they discover a small community haunted by witches, led by a local devil with a troubling connection to Hellboy's past: the Crooked Man.
Other Film Series
Avatar
James Cameron's groundbreaking science fiction saga following Jake Sully's journey on the alien world of Pandora across multiple decades.
Ghostbusters
A supernatural comedy franchise about paranormal investigators who capture ghosts in New York City, spanning multiple decades and timelines.
The Mummy Universe
A franchise spanning ancient Egypt to modern times, following adventurers who encounter supernatural forces tied to Egyptian mythology, including the core Brendan Fraser trilogy and various Scorpion King spin-offs.
The Prophecy
A supernatural horror series exploring angelic warfare and humanity's role in the celestial conflict between good and evil.
Underworld
A gothic action series following the centuries-old war between vampires and Lycans (werewolves), centered on vampire Death Dealer Selene.
Warlock
A supernatural horror trilogy featuring different standalone stories about malevolent warlocks, connected more by theme than narrative continuity.