When Stewart used to be to play Charles Xavier for the primary time again in 2000, he did not even know who the X-Males have been (as he describes somewhere else in his ebook). In 2016, having performed the section in six motion pictures, Stewart admitted that he did not need to play Charles Xavier all over again in 2016, however he used to be lured by means of a possibility to paintings with James Mangold, a director he admired. He additionally favored the brand new premise of the script, writing:

“I began studying. Whoa. The 12 months is 2029. The X-Males themselves are in steep decline, and no mutants had been born for twenty-five years. James and his co-writers, Scott Frank and Michael Inexperienced, have been exploring the speculation of superhero entropy — what occurs once they get clapped out and previous, their powers waning, most of the people detached to them?”

Charles, along with dwelling in a tank, is dealing from dementia. He babbles, misremembers issues, and on occasion has superpowered psychological aneurysms that unwittingly motive earthquakes and physically harm. Filming together with his co-stars used to be additionally an attractive revel in for Stewart, no longer simply with Jackman, however with the younger Dafne Prepared, who performs a personality named Laura, a semi-feral mutant kid with Wolverine’s powers. Stewart admired the 11-year-old’s interest, writing:

“We began filming in Might 2016. Being again on a collection with Hugh used to be exciting and invigorating. We have been joined by means of Stephen Service provider because the mutant Caliban … and kid actress Dafne Prepared, probably the most bizarre juvenile performer with whom I’ve ever labored. […] Dafne’s focal point and seriousness have been one thing to behold once we have been rehearsing and taking pictures — she jogged my memory of myself in my more youthful ‘We don’t seem to be right here to have amusing’ days.”

Stewart stated, regardless that, that after the cameras stopped rolling, Prepared become type and genial.