Many and all too various are the artistic sins that can be laid at the door of Hollywood. Not least among them is how gruesomely it misused the talents of Elvis Aron Presley. Thirty-one feature films, and all of them awful. All right, a few are somewhat less awful. "Viva Las Vegas" (left) beside having the best Elvis-movie title song (thank you, Doc Pomus), isn't all that bad; there's a definite combustible chemistry between Elvis and Ann-Margret. Usually, he sleepwalks through these movies, and who can blame him? Here his costar keeps him very wide awake. "King Creole" had Michael Curtiz for its director, and D on Siegel (who thought Elvis showed real promise as an actor) directed "Flaming Star."