The series originated with the film
Unbreakable, directed by Shyamalan and released in 2000. When
M. Night Shyamalan conceived the idea for
Unbreakable, the outline had a comic book's traditional three-part structure (the
superhero's "birth", his struggles against general evil-doers, and the hero's ultimate battle against the "
archenemy"). Finding the birth section most interesting, he decided to write
Unbreakable as an
origin story. At the time,
comic book themed
superhero films were niche, so the film was marketed as a
psychological thriller like Shyamalan's breakout film
The Sixth Sense, rather than as a superhero film. According to Shyamalan, "I was on a conference call with the studio, and they were saying we can't mention the word 'comic books' or 'superheroes' because it's too fringe". Upon release in 2000,
Bruce Willis revealed that
Unbreakable was the first part of a planned trilogy. Both Willis and
Samuel L. Jackson pushed for a sequel or trilogy, with Willis stating "It's really built as a trilogy," but Shyamalan expressed uncertainty and said, "I can't tell you anything about them." Whether the film had a sequel depended upon how it would perform at the box office. While
Unbreakable was a moderate box office success, grossing worldwide on a budget, it performed below expectations, earning about a third of what
The Sixth Sense grossed. as the audience for comic book superhero films grew over time.
Quentin Tarantino also included
Unbreakable on his list of top 20 films released since 1992. The second film
Split originated from the character of Kevin who had been in one of the early drafts of
Unbreakable, but Shyamalan had pulled the character out, stating there were balancing issues at that time. With
Split, he brought in some of the scenes he had written for
Unbreakable around Kevin.
Split became a box office success, with over 2,000%
return on investment (ROI), making it the most profitable film of 2017, While Shyamalan has stated that he is usually not a fan of making sequels, the stars of the first film, Bruce Willis and Samuel L. Jackson, had asked him to consider making a sequel. Shyamalan then planned to make a trilogy, finally releasing the third film,
Glass, in 2019 as the last. He has said he may continue making more if the inspiration for writing the material is there. == Films ==