The.Role.That.Changed.My.Life.Clint.Eastwood.Kevin.Costner.Mel.G

I believe this is the episode named “I Wanted To Direct”. That episode is the only one with Kevin Costner (Dances With Wolves) and Mel Gibson (Braveheart). But it is described as covering Robert Redford (Ordinary People) and not Clint Eastwood (Unforgiven).