"I love original movies. That for me is a challenge that I love to do," Shyamalan told IANS.
"I love originality. I love finding a new tone, new way of telling stories and customising that particular story... That is what interests me. I enjoy not knowing. What it is going to be like when I start is the most fun challenge," he added.
He converged the world of "Split" (a story about a man with over 20 different personalities who kidnaps three teenage girls) and "Unbreakable" (about David Dunn who gets superhero abilities after surviving a train crash) in "Glass".
"'Glass' is in many ways a standalone movie because it has its own tone and own story. Hopefully the trilogy each of the movie can stand on its own," he added.
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