Steffens had a small but emotional role in "Parkland," tastefully illustrating the First Lady's anguish during JFK's last ride in Texas and inside his 1963 operating room.

With the new show being centered around their romantic relationship, it was confirmed that Jacqueline Kennedy Onassis would ... the young actress known for her standout role in 'The Wilds' and ...

Natalie Portman is the latest actress to try on one of Jackie Kennedy's pillbox hats in the critically acclaimed new biopic "Jackie," out Friday - and she certainly won't be the last.