"At the point when work writing and directing big franchises has become the emotionally loaded equivalent of writing a new chapter of The Bible (with the probable danger of being stoned and called a blasphemer), then a lot of bolder minds are gonna leave these films to hacks and corporate boards," Mangold wrote.
"If you feel that is the case, if you feel the film-makers are just corporate tools and powerless, then why b***h at us?" he tweeted.
"In the case of Rian Johnson and Christopher Mcquarrie, I assure you these cats are not 'owned'. They actually fight your battles behind the scenes," he added.
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