New 41+ James Mcavoy Anya Taylor-Joy Split. Night shyamalan reveal how they really filmed james mcavoy's amazing performance of personalities. Split is a 2016 american psychological horror thriller film and the second installment in the unbreakable trilogy written, directed, and produced by m. And dennis, and patricia and hedwig, and a host of distinct personalities all sharing one body. Did you know in advance what each of his alters.