Pet Sematary Movies: Original Timeline
This watch order follows the original 1989 Pet Sematary adaptation and its 1992 sequel. The first film remains one of the more faithful Stephen King adaptations, featuring the Creed family's tragic encounter with the ancient burial ground. Directed by Mary Lambert and written by King himself, it captures the novel's exploration of grief and the terrible consequences of trying to cheat death.
Pet Sematary II shifts to a new protagonist - a teenage boy and his veterinarian father - and only loosely connects to the original through the cursed cemetery's continued influence in Ludlow. This sequel received poor reviews and King distanced himself from it.
There are 2 other watch orders available - see the links up above.

Pet Sematary
When the Creed family's cat dies, a neighbor introduces them to an ancient burial ground with dark supernatural powers that can bring the dead back to life.

Pet Sematary II
A teenage boy and his friend discover the dark powers of an ancient burial ground that brings the dead back to life with terrifying consequences.
Other Film Series
Anaconda
Giant snake creature features spanning from the Amazon rainforest thriller to comedic meta-commentary.
Cults
Films exploring the manipulation, devotion, and darkness of religious and psychological cults.
Grindhouse
An exploitation cinema tribute that began as a 2007 double feature and spawned multiple spin-off films from its fake trailers.
Re-Animator
A cult horror-comedy trilogy following mad scientist Herbert West's experiments in reanimating the dead, based on H.P. Lovecraft's story.
Texas Chainsaw Massacre
A horror franchise following the cannibalistic Sawyer family and their chainsaw-wielding member Leatherface across multiple timelines, reboots, and alternate continuities.
Warlock
A supernatural horror trilogy featuring different standalone stories about malevolent warlocks, connected more by theme than narrative continuity.