A villain stalking down a dark corridor, heroes and enemies alike succumbing to severe ends, absolutely no hope for survival throughout an increasingly bleak two hours. This is, of course, a description of Disney's Star Wars horror movie, Rogue One: A Star Wars Story.
Rogue One was Disney's first attempt at a live-action feature-length spinoff for its successful franchise. The filmmakers wanted the non-Skywalker film to stand out from the pack, so director Gareth Edwards purposely gave it a very different and grittier feel than the previous films. In doing so (and thanks to numerous reshoots), Edwards created a horrific and grounded depiction of the titular war in the stars.
Rogue One may not be as terrifying as The Conjuring (movies shouldn't be allowed to be as terrifying as The Conjuring), but it's at least as scary as Gremlins (which is technically classified as horror). The film absolutely follows clear-cut horror movie conventions, as shown in this Rogue One fan theory list.
There Are No Jedi To Come And Save The Day
The AT-AT Walkers Are Filmed Like Kaiju
'Rogue One' Opens With A Tragic Kidnapping
Darth Vader's Appearance Plays On Classic Slasher Tropes
Stormtroopers Are More Threatening Than In Other Films
'Rogue One' Is The Goriest 'Star Wars' Movie