The footage of Elvis Presley singing "Love Me Tender" at the end was shot after preview audiences reacted badly to his character's fate. This new footage created a continuity error, as Elvis had dyed his hair black by the time of the additional shooting, while in the movie his hair color was closer to blonde.
Elvis Presley is credited as co-writer of the film's four songs, but in fact had little to do with writing them; it was just for purposes of royalties. Elvis did reveal at a 1968 press conference , when asked about his " lack of songwriting, in general" that he did contribute one line of lyrics to the title song, "Love Me Tender".
The film was produced by 20th Century-Fox but the premiere was at the Paramount Theater on Broadway in New York City. Thousands of fans were outside the building on the night of premiere. A huge paperboard with the image of Elvis Presley was on the outside of the building.
Elvis Presley was later offered the starring role in director Robert D. Webb's next film, The Way to the Gold (1957), but 20th Century-Fox refused to pay the $250,000 plus 50% of the profits that Elvis' manager asked (Fox had offered $150,000 plus 50%).
The title song, "Love Me Tender" was taken from the Civil War ballad "Aure Lea", written by W. W. Fosdick (words) and George R. Poulton (music). That song first appeared on the screen in 1936 sung by a Francis Farmer in "Come And Get It". It was adopted, almost from its' beginning, as the "school song" of The West Point Military Academy and was part of the soundtrack for The West Point Story (1950) and _The Long Grey Line (1954)_.