Jackie's famously televised White House tour plays a key role in the film. Here, Portman in a scene from the now-iconic taping.

A Tour of the White House with Mrs. John F. Kennedy was broadcast on both CBS and NBC on Valentine's Day in 1962 (it was also shown later on ABC). The program was the first-ever televised tour of the White House, and—at least according to CBS—the "first prime-time documentary explicitly marketed toward a female audience."

"In 1961, [Jackie] did a White House tour, and I really connected with that," director Pablo Larraín told T&C's Adam Rathe. "Watching that, I felt so much for her and realized how complex she was. That was my door into the story. I suggested to the screenwriter Noah Oppenheim that we add it to the film, and he did. It's important because those were the days of splendor, and after that came the crisis. It helped us make an interesting structure."

The production garnered 80 million viewers, and it was syndicated around the world, even to Russia and China.

The Kennedy administration ushered in a new, elevated standard of entertaining in the White House.

In a still from the film, Mrs. Kennedy sits between Bobby and Jack Kennedy, listening to a classical music performance, a scene emblematic of how important the arts were during the Kennedy presidency.

The Kennedys were greeted by crowds when they landed at Love Field in Dallas on November 22, 1963.

Jackie's iconic pink suit, a custom American-made replica of Chanel, is still hidden away more than 50 years after JFK's assassination. In 2003, Caroline Kennedy signed a deed, gifting the outfit, including the pillbox hat, to the National Archives, with the provision that the suit be preserved but not displayed publicly until at least 2103, so as not to "in any way to dishonor the memory of the late President or cause unnecessary grief or suffering to members of his family."

After Kennedy was killed, Vice President Lyndon Johnson (played by John Carroll Lynch) had to take the oath of office immediately aboard Air Force One, before the plane made its way back to Washington, D.C.

When asked if she wanted to change before seeing the press, Jackie famously said, "Let them see what they've done," a line that is depicted in the film.

In this scene, Jackie grieves in the Lincoln bedroom, a highlight of her White House restoration project.

Jackie Kennedy is as much a style icon as when she served as First Lady. The film shows her processing her grief by trying on gown after gown.

On November 24th, President Kennedy was taken to the U.S. capitol to lie in state, but before the casket left, Jackie's secret service agent Clint Hill received a request that she and her brother-in-law Bobby wanted to see the President one last time. He shares what happened next in his memoir Five Presidents: "Weeping, Mrs. Kennedy turned to me, and asked if I would bring her a pair of scissors. I quickly found some in the drawer of the usher's office across the hall, and after placing them in her hands, I turned away to give her some privacy. With my back to the casket, I heard the sound of the scissors, beneath the painful cries, as she clipped a few locks of her husband's hair. Robert Kennedy gently closed the lid of the casket, grabbed Mrs. Kennedy's hand, and together they walked out of the East Room. General McHugh and I checked the casket to make sure it was securely closed, and out of habit, I looked at my watch to take note of the time—12:46. I had seen President Kennedy for the last time; the casket would never be opened again."

The film focuses on Jackie's planning of her husband's funeral, and her fixation with President Lincoln's processional.

Jackie brought her children to say goodbye to their father during his lying-in-state at the U.S. Capitol Rotunda. Over a quarter of a million mourners came to pay their respects during the public viewing of the casket.

John John's salute, while not shown in the film, remains one of the most enduring images of JFK's funeral service.

Here, Jackie walks in her husband's funeral procession alongside her brothers-in-law, Bobby and Ted Kennedy.

President Kennedy was laid to rest in Arlington Cemetery. His infant son Patrick, who died two days after he was born in August 1963 (and just four months before his father's assassination), was moved to a plot next to the President's, as was a stillborn daughter. JFK's grave is now marked with the eternal flame.