Pitt, 61, has six kids with ex-wife Angelina Jolie: Maddox, 24, Pax, 21, Zahara, 20, Shiloh, 19, and twins Vivienne and Knox, 17. Doug has Landon, Sydney and Reagan; and Julie has Caleb, Josie, Rylie, Caden and Cruz.

The actor shared a warm greeting for his mother, Jane Pitt, during a special screening of "F1," less than two months before her death.

Sydney Pitt, daughter of Doug Pitt, posted a tribute to the matriarch of the family on her social media accounts.