So it's been quite hard to get my hair to grow back because every movie I've done I've got to buzz it again," said McAvoy.
REVIEW: 'X-Men' packs a punch for Lawrence and McAvoy →
McAvoy said the film is about obsession, and the relationship between Igor and Victor.
First footage of 'X-Men: Apocalypse,' 'Deadpool' shown at Comic-Con →
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