Julian Baker (Austin Nichols)

Two of our CW favorites are joining Paul Giamatti, Billy Bob Thornton, Jacki Weaver, Marcia Gay Harden, Zac Efron, Jeremy Strong, James Badge Dale, Jackie Earle Haley, Colin Hanks, David Harbour, and Ron Livingston for an upcoming film about the assassination of John F. Kennedy.

Tom Welling, best known for his decade-long role as Clark Kent on "Smallville," is returning to acting with a co-starring role in "Parkland," along with "One Tree Hill's" Austin Nichols, who is set to recur on Showtime's "Ray Donovan." The movie focuses Parkland Memorial Hospital in the hours following the assassination of the president.

On Friday, November 22, 1963, President Kennedy was shot; the car immediately rushed to the hospital. He was pronounced dead at 1 p.m. in Trauma Room 1, while Texas Governor John Connally, who was also wounded in the shooting, was being treated in an adjacent room.

"I'm headed to Dallas to drive the fatal JFK motorcade route. Dark and sad research for a beautiful movie. Eerie. Interesting. Haunting. Inspiring," tweeted Nichols earlier this week.

Austin Nichols and Chloe Bennet are reportedly a new couple!

The 21-year-old Agents of S.H.I.E.L.D. star was seen making out with the 33-year-old One Tree Hill actor at a bar in Hollywood recently, according to E! News. They were also spotted hanging out together with the cast of her new Marvel show.

Chloe was previously linked to her former Nashville co-star Sam Palladio, while Austin dated his One Tree Hill co-star Sophia Bush for several years.