I went in to this film with mild expectations because of the director attached and left the theater pleasantly surprised! I always found the 'split'-personality disorders interesting and while I'm sure this portrayal wasn't accurate to how most people with disorder have it, im sure this was an extreme version of a worse case scenario. James McAvoy shines as he transitions from one character to the next. I felt unsettled as movie progressed and more of plot was revealed. It was also filled with some strange comedy that fit just perfectly with eerie tone of the film. Do your self a favor and watch this film. A clever, surprise ending will make you appreciate the director even more if you are a fan of his earlier films.