"If you believe that movies are alive and talking back to you, there's a point at which it's very obvious they're not finished," said producer Dede Gardner.
Pitt's drama for Malick has Cannes crowd divided →
"He's extremely careful," says Gardner. "I suppose that's one thing that happens if you age with consciousness, to be vigilant."
Nearing 50, a heightened perspective for Pitt →