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X-Men: First Class (stylized on-screen as X: First Class) is a 2011 superhero movie based on the X-Men characters appearing in Marvel Comics. It is the fourth mainline installment in the X-Men movie series and the fifth installment overall. It was directed by Matthew Vaughn and produced by Bryan Singer, and stars James McAvoy, Michael Fassbender, Rose Byrne, Jennifer Lawrence, January Jones, Oliver Platt, and Kevin Bacon. At the time of its release, it was intended to be a franchise reboot and c