Glass is a 2019 American superhero thriller film written and directed by M. Night Shyamalan. It is a crossover and sequel to Shyamalan's previous films Unbreakable (2000) and Split (2016) and the third and final installment in the Unbreakable trilogy. Bruce Willis, Samuel L. Jackson, Spencer Treat Clark, and Charlayne Woodard reprise their Unbreakable roles, while James McAvoy and Anya Taylor-Joy return as their Split characters, with Sarah Paulson, Adam David Thompson, and Luke Kirby joining the cast. The film sees David Dunn / the Overseer as he and Kevin Wendell Crumb / the Horde are captured and placed in a psychiatric facility with Elijah Price / Mr. Glass, where they contemplate the authenticity of their superhuman powers.