The King vs. The King of the Dead.

The "true" story of what really became of Elvis Presley. We find Elvis as an elderly resident in an East Texas rest home, who switched identities with an Elvis impersonator years before his "death," then missed his chance to switch back. He must team up with JFK and fight an ancient Egyptian mummy for the souls of their fellow residents.
In Bubba Ho-tep, consciousness is carried by monsters and creatures — a plane of “retirement-home horror”. The story fights on E8/E9 of the E0–E14 reality ladder, compressing aging, identity, mortality, myth, heroism.
Films fighting at the same level of reality, about the same things.
Death Becomes Her (1992)E8/E9 · aging, identity
Kizumonogatari Part 1: Tekketsu (2016)E8/E9 · identity, mortality
Buffy the Vampire Slayer (1992)E8/E9 · identity, mortality
Vampire in Brooklyn (1995)E8/E9 · identity, mortality
Avalon High (2011)E8/E9 · heroism, identity
Beowulf (1999)E8/E9 · heroism, mythOther films that move a human interior onto the same kind of thing.
Wes Craven's New Nightmare (1994)consciousness in monsters · meta-horror nightmare
Blade (1998)consciousness in monsters · vampire underworld
What We Do in the Shadows (2014)consciousness in monsters · vampire flatshare
Wish Dragon (2021)consciousness in monsters · modern Shanghai with a wish dragon
The Black Cauldron (1985)consciousness in monsters · mythic quest
Hellboy: The Crooked Man (2024)consciousness in monsters · demonic Appalachian folkloreThe same preoccupations carried by a different kind of thing — grief told through the dead, an animal, a machine.
The Last Unicorn (1982)consciousness in animals · identity, mortality
Puss in Boots: The Last Wish (2022)consciousness in animals · heroism, identity
Toy Story 2 (1999)consciousness in objects · identity, mortality
The Lego Batman Movie (2017)consciousness in objects · heroism, identity
Superman Returns (2006)consciousness in aliens · heroism, identity
Lilo & Stitch 2: Stitch Has a Glitch (2005)consciousness in aliens · identity, mortality