Michael Jackson performed an “elaborate presentation” while auditioning for the first X-Men movie, according to the film’s producers.The late pop icon tried out for the role of mutants boss Charles Xavier, and according to Lauren Shuler Donner and Ralph Winter, he was one of three A-list hopefuls for the comic book adaptation.Mariah Carey and basketball star Shaquille O’Neal were also among those who came in to read for various roles in the blockbuster but it was Jackson’s “elaborate