The infamous feud between 21st Century Fox and Marvel Studios resulted in the latter company acting in a hilariously petty fashion by erasing the X-Men from as much media as possible — even retroactively. The Marvel Cinematic Universe was unable to include key players until 2019, when a landmark deal was struck between Disney and Fox that resulted in the acquisition of the Fantastic Four, Galactus, the Silver Surfer, and the X-Men.
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