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Natalie Portman - The actress' unwillingness to appear in some movies, including 'Thor' (2011) and 'Thor: The Dark World' (2013), is not surprising. The superhero flicks don't have much in common with her previous Oscar-winning work in 'Black Swan' (2010).

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Natalie Portman - In addition to not identifying with the role and the franchise, the star also wanted to dedicate herself to her newborn son. But there was no way around it: she was forced to appear in both movies because of her contract.

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Keanu Reeves - The actor was at the top of his career after the success of 'The Matrix' (1999). After the movie, however, Reeves dedicated himself to his band, Dogstar. But then director and (false) friend Joe Charbanic, who filmed the band's shows and wanted to join the movie industry, tricked him.

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Keanu Reeves - Charbanic faked the star's signature to make 'The Watcher' (2000). Reeves did not go to court for fear of failing to prove the fraud. But after it was released, the actor went public to tell the truth about the director, who eventually got burned in the industry.

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Val Kilmer - 'Top Gun' (1986) was a huge boost in his career, but the actor actually did not want to do it at all.

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Val Kilmer -

'Top Gun' was part of a contract with Paramount that Kilmer signed for three films. The actor later said that director Tony Scott ran after him begging him to appear in the movie.

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Edward Norton - Remember him in 'The Incredible Hulk' in 2008? Well, the actor said that he did like playing the character, but also criticized the Marvel Universe films.

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Edward Norton - According to some sources, the Marvel team found Norton difficult to work with. The actor was later replaced by Mark Ruffalo.

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Whoopi Goldberg - The actress was forced to do 'Theodore Rex' (1995), a movie that was made following the success of '90s hit series 'Dinosaurs.'

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Whoopi Goldberg - At first, Goldberg agreed only verbally to starring in the film. After two years, the actress did not want to do the movie any longer, but ended up starring in it anyway. The film was so bad that it was only released on video, for fear of losing millions of dollars.

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Channing Tatum - Unlike Portman, Channing Tatum has no problem starring in blockbusters. In fact, he has a bunch of them under his belt! Yet from the beginning, the actor suspected that 'G.I. Joe: The Rise of Cobra' (2009) was going to be a failure.

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Channing Tatum - Although he liked the storyline, the actor admitted that the script was weak and that he would have preferred to play the murderous villain instead of the hero. Tatum later confessed that he hated this job and that he was forced to do it.

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Channing Tatum - Curiously, Tatum has remained attached to the movie about the mutant Gambit, even with the problems the production has faced, including the director quitting.

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Emily Blunt - The actress had her first big break with the success of 'The Devil Wears Prada' (2006). Shortly afterwards, Marvel wanted her to play Black Widow in 'Iron Man 2' (2010), but her contract with Fox required her to star in another film.

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Emily Blunt - The British actress had to withstand the failure that was 'Gulliver's Travels' (2010), and she eventually lost the Marvel role to Scarlett Johansson.

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Edward Norton - His debut film 'Primal Fear' (1996) was so lauded that it earned him an Oscar nomination. But it also meant the actor got stuck in a contract with Paramount.

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Edward Norton - 'The Italian Job' (2003) with Mark Wahlberg and Charlize Theron was one of the movies that Norton did against his will.

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Jennifer Garner -

The actress had already played the role of Elektra in 'Daredevil' (2003) and the experience was not the best. But that was just a supporting role. It got worse when they made a solo movie, 'Elektra' (2005).

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Jennifer Garner -

Tied up by a contract, the star had to play the heroine once again. She did not speak openly about the job, but ex-boyfriend Michael Vartan later said she had found it awful.

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Ben Affleck - Affleck has been in both successful and unsuccessful movies. In the latter category, one of the most notorious was the previously mentioned 'Daredevil' (2003).

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Ben Affleck - But after winning the Oscar for Best Picture for 'Argo' (2012), which he directed, Affleck seemed to be more selective with his roles. Then, however, came the responsibility of playing, once again, a superhero—Batman. The movie 'Batman v Superman: Dawn of Justice' (2016) met mixed reviews.

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Ben Affleck - Affleck's contract tied him into appearing in new movies. In 'Justice League' (2017), he didn't seem to put much effort into his performance and also appeared disinterested in promoting the movie.

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Mike Myers - The actor had to do 'The Cat in the Hat' (2003) after he declined a movie he had agreed with Universal to, this because he didn't like the script.

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Mike Meyers - Because of this, Universal filed a millionaire lawsuit against the actor, but also presented him with 'The Cat in the Hat' as an alternative option. Myers succumbed to the pressure and made the movie, which was a failure and received several nominations for the Golden Raspberry Awards, which elect the worst films.

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Marlon Brando - When he was forced to make the film 'Désirée' (1954), Marlon Brando showed that he was not at all happy about it.

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Marlon Brando - Forced by contract to play Napoleon, the actor hated the script and began to sabotage the movie. Despite his boycott efforts (he was forgetting his lines on purpose, speaking with an accent, and causing chaos behind the scenes), the film was a success, earning two Oscar nominations.

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Cast of 'Movie 43' (2013) - This must be one of the worst movies ever, and yet it stars several big actors. So, how did it ever get made? It started when influential producer Charles B. Wessler persuaded Kate Winslet and Hugh Jackman to film a sketch.

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Cast of 'Movie 43' (2013) - Wessler managed to persuade other actors with this scene of Winslet and Jackman. After all, if they were willing to appear in the movie, the project could be interesting! But then everyone realized it was actually a fiasco.

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Cast of 'Movie 43' (2013) -

Colin Farrell and George Clooney did avoid it, but it was too late for others to pull out. Emma Stone, Halle Berry, Richard Gere, Naomi Watts, Elizabeth Banks, Terrence Howard, and Uma Thurman were so traumatized that they didn't even show up to the premiere.

See also: The 30 best action movies of all time

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