X-Men: Dark Phoenix - 8 Mistakes It Must Avoid

8. Shifting The Focus From Jean Grey

X-Men: The Last Stand's biggest mistake with the Dark Phoenix saga was attempting to combine the story with another comic arc, and doing justice to neither.

Jean Grey and her inner struggle were relegated to subplots while the film followed Magneto and his army's war against humankind, elements plucked from Joss Whedon’s Astonishing X-Men story Gifted.

The Dark Phoenix saga is epic in scope and cosmic in scale, and therefore doesn't lend itself well to dilution.

This is a major pitfall the movie must avoid by sticking to the core premise of Jean and her inner turmoil as the malevolent Phoenix Force engulfs her mind, body and soul, turning her against her loved ones.

Her plight is the essence of the story, and the one thing that must not be lost during the page-to-screen transition.