No two ways about it, 2000's X-Men movie was a massive gamble. At a time when studios needed movie star vehicles, 20th Century Fox found itself without a summer blockbuster due to a delay on a Tom Cruise film. It'd already greenlit and backtracked on X-Men once.

When the film finally got going? Well, there'd be well-reported behind the scenes problems. A star who wasn't cast until shooting began. And a story that requires a fair amount of use of the word 'allegedly'...

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