FILM 1928: GLASS
TRIVIA: Samuel L. Jackson said of working with James McAvoy on the movie, "As good as I like to think I am or what I do and how I do it, watching somebody transform characters in front of your eyes and have an argument with four different people is pretty amazing."
James Mcavoy based one of his twenty-three multiple personalities on a young Saoirse Ronan, whom he worked with in the film Atonement (2007).
While promoting the movie at the 2018 Comic-Con, writer and director M. Night Shyamalan noted that the film was "a once-in-a-lifetime movie in that Disney arm Buena Vista International, which owns the rights to Unbreakable (2000), and Split (2016) studio Universal Pictures, agreed to team for the film." He continued saying, "I don't think this will ever happen again, where two studios had two IPs they completely owned, and I said, 'Can we make a sequel to both, and you guys share it?' and they said 'Yes.'"
Sarah Paulson accepted her part without reading the script, even though her role was originally written for a man, for the opportunity to work with director M. Night Shyamalan.
When David Dunn is taken into the mental hospital, the first camera feed seen is labeled H20. David's weakness is water which hints that the hospital is dangerous to him.
Although Disney owns the rights to Unbreakable (2000), director M. Night Shyamalankept the rights to any potential sequels to himself, so that the studio could not make one without his involvement. Such was his desire for creative control that he co-financed Glass (2019) by mortgaging his house.
DIRECTOR CAMEO: M. Night Shymalan played a customer at the Dunn Security store and recognized David Dunn as a former security guard at the stadium and credits him for putting him on a good path. In Unbreakable (2000), Shymalan cameoed as a drug dealer whom David has a run in with.
