HBO Documentary Films' "Elvis Presley: The Searcher" is a groundbreaking three-hour two-part film which focuses on the development of Elvis' spellbinding artistry, from his early blues and country roots and influences through his seismic contributions to popular culture to his 1976 recording sessions at the Jungle Room in Graceland. The documentary premieres on HBO on Saturday, April 14. Learn more about Elvis Presley, Graceland and the documentary on Graceland.com.