The napkin contract that promises to forgive Colonel Parker's debts changes between scenes. When Col. Parker picks it up off the table, it reads "Elvis Presley remains in residence." When he drops it backstage, it reads "as long as Elvis Presley remains in residence." The words "as long as" weren't there the first time.
When Elvis is filming "If I Can Dream" for Elvis: The Comeback Special (1968), the sponsor is sitting at the back of the control room. He stands once when the camera is in the control room, and again when the control room is shown from the stage view.
In the film, Elvis becomes aware that Tom Parker is an undocumented immigrant when he can't tour internationally. In reality, Elvis fully believed that Parker was originally from Huntington, West Virginia. Parker's immigration status was revealed in 1981, four years after Elvis died.
Elvis tells Parker that he is fired. In real life, Elvis didn't like confrontation. He would tell one of his crew to tell Parker that he was fired, Parker would respond by telling the staff member that Elvis would have to say that himself, and Elvis never did .
In the film, Tom Parker becomes worried that Elvis is generating controversy. In reality, Parker was delighted that Elvis was causing riots and grabbing headlines for being overly suggestive. It's part of why he wanted Elvis in the first place.
In the film, Elvis and B.B. King are close friends and go to clubs and see Little Richard together. In reality, Elvis and B.B. were acquaintances, but not close friends.
When Elvis is wearing the US Army uniform, the "U.S." disk on his left jacket collar is incorrect. It should have the cross sabers and tank emblem showing that he is in the Armored Corps or tank corps. It showed the same "U.S." disk which is not correct for the uniform for the early 1960s.
Elvis says he has never left the country outside of his Army posting in Germany, and he wants to tour Europe and Japan. In 1957, Elvis Presley played 3 shows in Ottawa, Canada. One show was recorded and released as an LP titled "Elvis in Canada". At the time, traveling to Canada as a US citizen wasn't that different from traveling between states.
Many factual errors and discontinuities may be deliberate, to reinforce the notion that "Colonel" Tom Parker is an unreliable narrator.
Elvis is performing a Christmas special when he and the others learn about the assassination of Robert F. Kennedy. Elvis: The Comeback Special (1968) aired on December 3, 1968, but it was filmed in June 1968, when Kennedy was assassinated.
An early scene, set in 1997, shows The International Hotel and Casino. It opened in 1969, and became the Las Vegas Hilton in 1972. The film never mentions its new name, but this is likely the movie-makers avoiding trademark infringement.
In the narration, Colonel Parker says the satellite broadcast of Elvis' Hawaii Concert was the first time a concert was broadcast worldwide. The first worldwide satellite concert broadcast was in 1967, when The Beatles sang, among other songs, "All You Need is Love". The Elvis Presley broadcast was the first live worldwide concert broadcast; the Beatles performance was prerecorded.
When the four of them are traveling in the car, the gearshift is in "Park".
When Elvis performs "That's All Right Momma" at the International Hotel, his acoustic guitar is not plugged in.
Elvis' first 45 rpm single "That's All Right" is in a white 'Sunray' printed paper sleeve. In 1954, Sun singles were issued in a plain brown paper sleeve. The 'Sunray' sleeve was introduced in 1959.
The first concert scene at the International Hotel, in 1969, alludes to Elvis' first concert in Las Vegas, but the costume is from 1970. Elvis Presley wore karate Gi's in his 1969 shows.
When Elvis goes to Club Handy and the streets are filled with vehicles of the era, a 1958 Chevy is parked by the curb.
In an early scene, set in the late 1940s, a Pentecostal pastor wears a clerical shirt with a short white insert in the collar. That type of shirt first appeared in the mid-1960s.
When Elvis & Col. Parker embrace after Elvis' mother's death, Elvis says some words which are heard but his lips do not move.
The opening scene shows flat, desert-like landscape surrounding Tupelo, Mississippi. In real life, Tupelo is surrounded by forests.
When Elvis talks with Priscilla in the limo, the cars have Tennessee license plates, but the LAX terminal is in the background.
When the press questions Colonel Parker's background, one journalist's accent keeps changing from American to Australian and back.