Sir Ian McKellen's cameo as Magneto marks the first time in ten years that he played Magneto and Gandalf in the same year. X-Men 2 (2003) was released the same year as Il Signore degli Anelli - Il ritorno del re (2003), while this movie was released the same year as The Hobbit: The Desolation of Smaug (2013).

Film

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