There's a great anecdote about Kevin Costner told on the Team Deakins Podcast by producer David Valdes, who is a longtime producer of Clint Eastwood's films. Clint Eastwood directed and starred with Costner in A Perfect World.
Eastwood is well known for his efficiency in shooting, moving extremely fast with few takes, just getting what he knows he needs shot since he already knows the edit in his head. Eastwood was directing a scene where the escaped convict played by Costner steals some clothes off a clothesline, and the farmer working the field is supposed to stand up on the tractor and spot him.
Well, the farmer wasn't hitting the timing to Costner's liking, and Costner took it upon himself to go around Eastwood and start directing the farmer for how and when to perform his role, in shots Eastwood knew the timing didn't matter because they were going to do a cutaway of the farmer's reaction anyways. The old man playing the farmer couldn't get the timing as Costner wanted it and Costner got frustrated and said he was going to his trailer, and to get him when they straighten it out. When Costner left the set, Eastwood turned to Costner's stunt double Norm and said "You're up."
They continued shooting the entire scene with the stunt double, shooting absolutely everything they could that didn't need Costner's face in the shot, which ended up being everything but one last closeup that had to be Costner. He eventually came back to set and said "What's going on here?" and Eastwood said "If you want to make a movie, step in and make a movie." They shot the one closeup and Eastwood said "Okay you're wrapped for the day, we can shoot the rest with Norm."