Split is written and directed by Shyamalan, following up his return to low budget films The Visit this year, and is supposedly a «suspense thriller with elements of the supernatural». (firstshowing.net)
In particular, del Toro and his co-screenwriter Matthew Robbins (Mimic) seem to have taken A.S. Byatt's 1993 book Angels & Insects — or its 1995 cinematic adaptation — reversed the genders of the main characters, and added elements of the supernatural. (chrisreedfilm.com)
In a year filled with films that successfully cohabited honest humanity with elements of the supernatural, animator Makoto Shinkai's metaphysical teenage mind - scrambler rises above the crowd. (shepherdexpress.com)