The Unbreakable film series, also referred to as the Eastrail 177 Trilogy, is an American thriller, psychological horror, and superhero film series involving the derailment of the fictitious Eastrail #177 train. The films were written, produced, and directed by M. Night Shyamalan. The trilogy consists of Unbreakable (2000), Split (2016), and Glass (2019).

is the movie split part of a trilogy?

pick from the following.
* no;
* yes;
yes