Split is a psychological horror film directed by M. Night Shyamalan, starring James McAvoy as a man with 23 different personalities who kidnaps three teenage girls.
The font used in the title "Split" appears to be a heavily altered version of Helvetica Bold. To replicate it, one can utilize Coolvetica, a sans-serif font that draws inspiration from American logo designs of the 1970s. A variety of styles can be obtained for free from the Fonts Used Section. While the complete font family's license can be purchased here.