Ordinarily in thrillers dealing with multiple personality disorder, the condition itself serves as a late-film plot twist.
Think (spoiler alert)Psycho,Fight Club,Shutter Island.
But in hisunnerving new filmSplit, he gets that information out right up front.

Universal Pictures
Thats how I would sell the movie.
Splittakes that as its jumping-off point, but then whats next?
And to a certain extent, the voices in his own head.
I am a writer, he tells EW.
But then I walk on set as the director.
Then Im a producer.
And occasionally an actor.
Those hats swap like different personalities.
I have to be careful of the others.
The director looks at the script and goes, Ugh, why did that writer write it likethis?
Splitopens on Jan. 20.
Check out the trailer (below) and stay tuned here for more news on the film.