Watch James McAvoy reveal the prank he almost pulled on Jennifer Lawrence


While doing promos for X-Men: Apocalypse, James McAvoy revealed how he had planned to prank Jennifer Lawrence by making her undergo four hours of make-up only to tell her it isn't necessary.

While things didn't quite work out, Jennifer admitted she would have seen the lighter side of things and had a good laugh.

Both James and Jennifer reprise their roles as mutant superheroes Professor X and Mystique in the latest instalment where they face an oppressive, ancient enemy - Apocalypse, who aims to destroy humanity.