You would not believe what Sienna's been up to!
WATCH: James McAvoy Plays Pants On Fire!
In his new film, James plays a character with 23 different personalities. For Pants On Fire he just needs one, but he has to lie convincingly!
So what do you think? Did James get knocked out during a game of Tequila Slaps (not recommended!) by an X Men colleague, did he break his hand by punching a metal door on set or was he personally selected to play Charles Xavier by Sir Patrick Stewart?
James McAvoy Plays Pants On Fire!!
James plays a character with 23 different personalities so this should be a doddle!
When Ed Sheeran brings in his guitar, it'd be rude not to ask him to play it!
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