Bubba Ho-Tep

In this 2002 comedy horror film, Bruce Campbell plays Sebastian Haff, an elderly man claiming to be the real Elvis Presley, who switches identities with a man named Sebastian Haff years before his "death." Ossie Davis stars as John F. "Jack" Kennedy, a black man who claims to have been patched up after an assassination attempt and dyed black to live in hiding. The two team up to face off against a re-animated ancient Egyptian mummy that's terrorizing their retirement home, where they use a motorized wheelchair and a walker to battle the creature. As they fight for the souls of their fellow residents, Elvis reflects on his age, dignity, and mortality, ultimately dying after saving everyone with a heroic act.