The first trailer for James McAvoy’s upcoming film “Split” has just been released online, and you can watch it in full below. “Split”, directed by M. Night Shyamalan, sees McAvoy (taking over a role that Joaquin Phoenix originally circled) playing Kevin, a man whose psychologist (Betty Buckley) has identified 23 individual personalities occupying his brain. But Kevin’s issue is no mere psychological condition: his body chemistry actually changes with each identity. Most of them appear to be harmless, there is one that has recently started to emerge and which dominates the others. This one has malicious, mysterious intent pulsing through him, and Kevin abducts three teenage girls (including The Witch’s Anya Taylor-Joy) for reasons that he won’t immediately reveal.