Unfortunately, a number of movies that held a lot of promise wound up ruined by on-set feuds between the directors and the films’ stars.

From Cop Out to Blade: Trinity, some really promising movies have been ruined by on-set feuds between the filmmakers and the actors. It’s difficult to make a great movie under the best circumstances because so many different departments have to be firing on all cylinders and working towards the same vision, but it’s especially challenging when two or more people on the set don’t get along. Arguments between directors and their stars – or feuds between the actors themselves – can create tension on a movie set that spoils the end product.

On-set feuds between filmmakers can often generate more buzz and discussion than the films themselves. The drama surrounding notoriously troubled sets can doom or hinder a movie’s success. Here’s ten movies that were held back and ultimately ruined by a feud between those involved in the production.

Kevin Smith & Bruce Willis – Cop Out

Kevin Smith has said that working with Bruce Willis on the action comedy Cop Out was “f***ing soul-crushing” (via Variety). He credits Tracy Morgan’s professionalism with saving the movie: “Were it not for Tracy, I might have killed either myself or someone else in the making of f***ing Cop Out.” Willis’ phoned-in performance opposite the more committed Morgan spoiled what could’ve been a fun “buddy cop” movie. After Willis retired from acting following his aphasia diagnosis, Smith said that he regretted the “petty complaints” he made about working with Willis on Cop Out.

Jim Carrey & Tommy Lee Jones – Batman Forever

Based on the camaraderie between the Riddler and Two-Face in Batman Forever, it might seem as though Jim Carrey and Tommy Lee Jones got along well on the set. But Carrey recalled (via The Hollywood Reporter) an encounter with Jones at a restaurant mid-filming in which Jones told Carrey, “I hate you… I cannot sanction your buffoonery.” Carrey explained, “I was the star and that was the problem.” Whether that was the reason for Jones’ dislike for Carrey or not, this turned what could have been a nuanced take on Harvey Dent into a one-dimensional cartoon character.

Steven Spielberg & Julia Roberts – Hook

Julia Roberts earned the nickname “Tinker Hell” (via Comic Book Resources) on the set of Steven Spielberg’s live-action Peter Pan adventure, Hook, because of her reportedly terrible behavior while playing Tinker Bell. Although Spielberg thought Roberts was a good actor, after their difficulties on the set of Hook, he never wanted to work with her again. Spielberg later acknowledged that it was an “unfortunate time” for Roberts, as she was going through problems in her highly publicized relationship with Kiefer Sutherland at the time. With a stabler set environment, Hook might have ended up being a better movie.

Ryan Reynolds & Martin Campbell – Green Lantern

Both Ryan Reynolds and director Martin Campbell have publicly criticized their Green Lantern movie in the years since its critical and commercial failure. Campbell had originally wanted to cast Bradley Cooper as Hal Jordan and Warner Bros. cast Reynolds behind Campbell’s back (via JoBlo). This led to an uncomfortable on-set experience for both Reynolds and Campbell. Reynolds found that Campbell was constantly critiquing his performance, and Campbell had to make a movie with an actor he felt was wrong for the part. Apparently, this was one of the contributing factors that led to one of the biggest disasters in comic book movie history.

Bill Murray & Lucy Liu – Charlie’s Angels

When a scene from Charlie’s Angels was rewritten without Bill Murray’s knowledge, the actor unleashed a rant at Lucy Liu in which the actress claims he used “inexcusable and unacceptable” language (via Deadline). Liu explained, “I stood up for myself, and I don’t regret it.” She said that crew members who witnessed the rant told her they were “really grateful” that she spoke up. Bosley’s close working relationship with the “Angels” is a key component of the Charlie’s Angels franchise, and the rift between Murray and Liu put a strain on that chemistry.

Wesley Snipes & David S. Goyer – Blade: Trinity

After the first two Blade movies helped to blaze the trail for the comic book movie genre, Blade: Trinity marked a drastic dip in quality for the franchise, and that can be at least partially attributed to the feud between star Wesley Snipes and writer-director David S. Goyer (via /Film). Snipes only ever came to the set for close-ups and left everything else to his stand-ins. According to Blade: Trinity actor Patton Oswalt, Snipes tried to strangle Goyer during a creative disagreement. Eventually, Snipes would only communicate with Goyer via Post-it notes, which he signed in character as “Blade.”

Megan Fox & Michael Bay – Transformers: Dark Of The Moon

After butting heads with director Michael Bay on the sets of the first two Transformers movies, Megan Fox was fired from Transformers: Dark of the Moon for comparing Bay to Hitler. Fox was replaced by Rosie Huntington-Whiteley as Carly Spencer. Audiences had invested two movies in the relationship between Sam Witwicky and Mikaela Banes, and the second movie – Transformers: Revenge of the Fallen – ended with Sam and Mikaela professing their love for each other. It hurt the series to replace Mikaela, one of the franchise’s most well-developed characters, with a placeholder love interest in the third movie.

Olivia Wilde & Florence Pugh – Don’t Worry Darling

Shia LaBeouf was originally cast as the male lead in Olivia Wilde’s dystopian thriller Don’t Worry Darling. When the actor left the project, the usual “scheduling conflicts” were cited as the reason for his departure (via Variety). However, during the troubled promotion of the film, Wilde claimed she fired LaBeouf and he counterclaimed that he quit. Either way, a movie that could’ve been a serviceable sci-fi satire was ruined when LaBeouf was replaced by non-actor Harry Styles, whose performance didn’t match co-star Florence Pugh, whose role in the film was met with critical acclaim.

Vin Diesel & Dwayne Johnson – The Fate Of The Furious

The feud between Vin Diesel and Dwayne Johnson gradually intensified during Johnson’s tenure in the Diesel-led Fast & Furious franchise, but it didn’t affect the actual movies until they made The Fate of the Furious. Diesel and Johnson seemingly resented each other so much by the time they made the eighth installment of the Fast & Furious saga that they didn’t shoot any scenes together (via GQ). Their scenes in the movie are awkwardly stitched together from separate shoots. The Fate of the Furious set up Johnson’s Luke Hobbs character for his own spin-off with Jason Statham’s Deckard Shaw, which allowed him to part ways with Diesel professionally.

Marlon Brando & Val Kilmer – The Island Of Dr. Moreau

The 1996 adaptation of The Island of Dr. Moreau had one of the most troubled productions in Hollywood history. Val Kilmer reportedly clashed with co-star Marlon Brando, as well as directors Richard Stanley and John Frankenheimer. Kilmer was a last-minute replacement for Bruce Willis and only agreed to work 60% of the filming days that Willis had agreed to. He was reportedly rude to the cast and crew and refused to read a lot of the dialogue he was given, which was attributed to the actor’s ongoing divorce. Kilmer’s ego clashed with Brando’s – at one point, the actors stayed in their trailers for hours and refused to come out.