M. Night Shyamalan's upcoming crossover sequel to Unbreakable and Split, titled Glass, has started production in Philadelphia.
The filmmaker announced that filming has commenced on Twitter Tuesday, alongside a photo of a clapperboard featuring a logo for the film.
"Day 1: Seventeen years in the making. #Glass," Shyamalan captioned the image.
Announced in April, Glass is scheduled to hit theaters on Jan. 18, 2018 and will work as both a sequel to 2000's Unbreakable and 2016's Split.
The film will revolve around Unbreakable's Bruce Willis taking on James McAvoy's villainous character from Split. Stars from both films, including Samuel L. Jackson and Anya Taylor-Joy, will also be featured alongside series newcomer Sarah Paulson.
Day 1: Seventeen years in the making. #Glass pic.twitter.com/La6X6alKgx
— M. Night Shyamalan (@MNightShyamalan) October 2, 2017
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