Yet another director seemingly completing his comeback, “Split” sees M Night Shyamalan building on the momentum of “The Visit” and nearing a return to his best form as he once again explores the boundary between psychological fact and science fiction. When three young girls are kidnapped, it’s just the beginning of their nightmare. Their kidnapper is Dennis, one of 23 distinct personalities who…

“The Visit” disturbed me in a couple of ways and only one of them was the effect Shyamalan was aiming for. I’ll tell you why, but it’s going to get into super-spoilery territory, so you have been warned (and will be again, because this is M Night Shyamalan, so spoilers are, like, everything). Brother and sister Tyler and Becca are in their early teens and are visiting their maternal Grandparents…