David Roberts, a former police officer who became a bodyguard for the late Whitney Houston, claims that aspects of their professional relationship would be re-enacted on the big screen.

Roberts is the author of upcoming memoir “Protecting Whitney” and recently spoke to the “Daily Mail” about his time with the iconic R&B and pop vocalist at the height of her career. Although their relationship wasn’t romantic in nature, Roberts told the outlet that it partly inspired the 1992 romantic drama thriller “The Bodyguard,” in which Houston acted opposite Kevin Costner. Roberts also suggested that he had an attraction to the singer, who died in 2012, but refused to act on his feelings due to professionalism, despite feeling prepared to “give up everything” for Houston.

“If you cross that line, you lose your objectivity, and that makes it dangerous for the person you’re protecting,” Roberts explained. “That was why [Costner’s] Frank Farmer and [Houston’s] Rachel Marron couldn’t be together — he crossed the line and that was the end of him in the capacity of what he was employed to do.”

The 73-year-old added that parts of “The Bodyguard” were moments that he and Houston “lived through.” “Little details such as Rachel holding onto the back of his shirt to escape crowds of fans. That was how we did it,” he said.

While Roberts initially had reservations about working for Houston, it was upon meeting her that he discovered the New Jersey native was “gracious, shy, introverted, well-mannered and one of the most beautiful women I had ever met.”

Elsewhere in the interview, Roberts said that Houston was unaware of the “level of threats she was exposed to.” “She had no reason to know,” he continued. “That’s why she employed me. I was there to absorb them and deal with all the threats.”

Decades before “The Bodyguard” made its theatrical debut, the film was written by filmmakers Lawrence Kasdan and John Boorman for actor Steve McQueen. After the 1978 rough draft of the script was sent to actor Ryan O’Neal, he pitched the idea to his then-partner, singer-actress Diana Ross, who declined.