Bubba Ho-tep!
http://www.bubbahotep.com/
Check out the trailer, it's a very goofy movie.
Bruce Campbell plays Elvis, and Ossie Davis (a black man) plays JFK.
It's basically about how Elvis and JFK are still alive, but holed up in an old folks home. Patients start dying left and right, and they find out that this Cowboy Mummy, Bubba Hotep, is sucking the souls out of the elderly in the home.
It's up to them to stop it.
Very good, but insanely goofy, movie.