on review aggregator rotten tomatoes, the film holds an approval rating of 37% based on 371 reviews, with an average rating of 5.13/10. the website’s critical consensus reads: ""glass" displays a few glimmers of m. night shyamalan at his twisty world-building best, but ultimately disappoints as the conclusion to the writer-director's long-gestating trilogy." on metacritic, which assigns weighted average ratings to reviews, the film has a score of 43 out of 100, based on 53 critics. audiences polled by cinemascore gave the film an average grade of "b" on an a+ to f scale, down from "split"s "b+" but up from "unbreakable"s "c", while those at posttrak gave it an overall positive score of 70% and a "definite recommend" of 49%.