 In one scene, Elvis is shocked to learn of Sharon Tate's murder by members of Charles Manson's cult. Before doing this film, Austin Butler, who portrays Elvis Presley, played Manson family members Charles Tex Watson in Once Upon a Time in Hollywood with Kurt Russell, who not only played the king in Elvis 1979, but also appeared unbilled with Presley in It Happened at the World's Fair 1963. After wrapping up the filming of the movie, Austin Butler was rushed to the hospital where he'd been bedridden due to the virus which simulates appendicitis. Austin Butler and Olivia Dijon's height match almost perfectly with Elvis Presley and Priscilla Presley. Butler is six foot and Dijon is five three. Elvis was five 11 and three quarters and Priscilla was five four. Tom Hanks and Colonel Tom Parker on the other hand have the exact same height at six foot.