But it does happen, and boy, some of the comments directors have made about some of the biggest names in Hollywood have been absolutely brutal.
Here are the directors who have trashed the stars of their films.
KEVIN SMITH VS BRUCE WILLIS
Kevin Smith directed Bruce Willis in the 2010 film Cop Out, which also starred Tracy Morgan.
The movie was an absolute stinker, and after its release, Smith told anyone who would listen he didn’t enjoy working with Willis, describing it as “f***in’ soul crushing”.
“I’ve never been involved in a situation like that where one component is not in the box at all,” Smith told Marc Maron on his WTF podcast.
“I mean, a lot of people are gonna be like, ‘Oh, you’re just trying to blame the movie on him’. No, but I had no f***ing help from this dude whatsoever.”
Smith alleged Willis refused to listen to his direction, telling Maron: “I was directing Bruce the way I direct everybody else. And Bruce was like, ‘I’ve been acting like Bruce Willis for 25 years, do you really think there’s anything you’re going to tell me that I don’t know?’”
In his book Tough Sh*t: Life Advice from a Fat, Lazy Slob Who Did Good, Smith again sunk the boot into Willis, writing, “He turned out to be the unhappiest, most bitter and meanest emo-bitch I ever met at any job I’ve held. And mind you, I worked at Domino’s.”
Willis wasn’t too bothered by Smith’s attacks, telling Time Out Beijing in 2013: “Poor Kevin. He’s just a whiner, you know? We had some personal issues about how we approached work. I don’t have an answer for him. I’m never going to call him out and lay him out in public. Sometimes you just don’t get along.”
MICHAEL BAY VS MEGAN FOX
In an interview to promote the second Transformers movie in 2009, Fox dissed Bay in an interview and said he was a nightmare to work with.
“He’s like Napoleon, and he wants to create this insane, infamous mad-man reputation,” Fox told Wonderland magazine.
“He wants to be like Hitler on his sets, and he is. So he’s a nightmare to work for but when you get him away from set, and he’s not in director mode, I kind of really enjoy his personality because he’s so awkward, so hopelessly awkward.
“He has no social skills at all. And it’s endearing to watch him.”
Not surprisingly the comments didn’t go down too well with Bay, and Fox was then dropped from the Transformers franchise.
The director spoke about Fox’s unflattering words in a 2011 interview with GQ.
“I wasn’t hurt because I know that’s just Megan,” he told the magazine. “Megan loves to get a response. And she does it in kind of the wrong way.
“I’m sorry, Megan. I’m sorry I made you work 12 hours. I’m sorry that I’m making you show up on time. Movies are not always warm and fuzzy.”
The two obviously buried the hatchet as Bay hired Fox to star in Teenage Mutant Ninja Turtles in 2014.
STEVEN SPIELBERG VS JULIA ROBERTS
Steven Spielberg was asked on 60 Minutes if he’d ever work with Julia Roberts again after Hook, which was released in 1991. In a soft voice, the director said, “No”.
From all reports, Roberts was an emotional wreck on the set of the fantasy film.
The actor, who played Tinkerbell in the film, was struggling when filming began having just called off her engagement to Kiefer Sutherland four days before their wedding.
Roberts was such a nightmare on set the crew nicknamed her “Tinkerhell”.
After filming had wrapped, the legendary director admitted to 60 Minutes, “It was not a great time for Julia and I to be working together.”
Roberts responded to Spielberg’s comments years later in Vanity Fair, saying, “I saw that and my eyes popped out of my head.
“I couldn’t believe it. I couldn’t believe that this person that I knew and trusted was actually hesitating to come to my defence. It was a hard lesson to learn. It was the first time that I felt I had a turncoat in my midst.”
VINCENT GALLO VS CHRISTINA RICCI
Gallo directed Ricci in his 1998 indie film Buffalo 66 and was later overheard trashing the actress.
“I don’t like her,” Gallo reportedly said about Ricci. “She’s an ungrateful c**t. But it was OK. She’s basically a puppet. I told her what to do, and she did it.”
In 2015, Ricci hit back at the director, telling HuffPost Live: “He just has nasty things to say about so many people, and he’s done nothing but say nasty things about me.
“I think he has imaginary fights with people. But I don’t like to talk about him. It just gets him more attention.”
The controversial director addressed his feud with Ricci in an open letter published last year and made it clear he regrets his comments from the past.
“I hold grudges sometimes, and I had that a little bit with Christina for reasons that I may have exaggerated,” Gallo wrote.
“I insulted her jokingly one day to a friend, and a sneaky gossip writer overheard me. Christina and I have not spoken since. There are a lot of people I don’t like and have no problem calling out. Christina is not one of them.”