Bubba Ho-Tep
http://www.imdb.com/title/tt0281686/
Starring Bruce Campbell as Elvis Presley living in a nursing home, and Ossie Davis as John F. Kennedy, who says he was patched up after the assassination, dyed black and abandoned by Lyndon Johnson. Elvis and JFK have to fight against an Egyptian mummy who sucks the souls out of the other senior citizens in the home. Awesome movie.