Priscilla, who has already seen the film, shared on social media that the movie brought up heavy emotions and made her relive "every moment" of their relationship. The mother-of-two — she shares Lisa Marie, 54, with Elvis, and Navarone, 35, with ex Marco Garibaldi — met the "Hound Dog" singer when she was only 14-years-old and married him seven years later after moving with him to Graceland.
"Priscilla knew Elvis better than anyone," an insider spilled in an interview for the print issue of Star Magazine. "He was the love of her life — and she's made it her mission to keep his memory alive."
Despite their happy memories in earlier days of their marriage, author Alanna Nash claimed the rocker was "never, ever faithful" to Priscilla in her memoir Elvis and the Memphis Mafia.
"He always had multiple women," she explained in the best seller, adding Elvis hadn't really wanted to get married to anyone. "He needed to settle down and Priscilla's father was asking when the wedding was going to happen, but Elvis was not at all keen on marriage."
But Elvis wasn't the only one who grappled with infidelity. Priscilla met martial arts teacher Mike Stone in 1972, and they later had a whirlwind affair. When Elvis found out, Priscilla said he reacted aggressively to the news.
"He grabbed me and forcefully made love to me," she wrote in her own memoir, Elvis and Me. "It was uncomfortable and unlike any other time he'd ever made love to me."
"He always had his demons. He really was alone. He really didn't have a peer, not with a group and not really with anyone," Priscilla said of the "Devil in Disguise" singer, noting she still genuinely loved being with him despite their problems.
"I was always ready to greet him at the door and pamper him," she continued. "I loved taking care of Elvis very much. I loved tending to him. I loved feeding him. It was a good life. It was different, but it was ours. I truly cherish the great times."
Although she divorced Elvis in 1973, she remained close with the music legend until his death in 1977.
"Their relationship wasn't perfect and Priscilla has moved on, but she still misses Elvis," the insider added, noting Priscilla is always looking for ways to honor his legacy. "She feels it's the least she can do."