Here are some of the adaptations of his comic book work:
* Batman Begins (2005) - Morrison's "Batman" run heavily influenced the film's portrayal of Batman's origin story, especially the "No Killing" rule.
* The Dark Knight (2008) - The Joker's characterization and "Why so serious?" line were inspired by Morrison's "Arkham Asylum: A Serious House on Serious Earth" graphic novel.
* Batman v Superman: Dawn of Justice (2016) - The film borrowed elements from Morrison's "Batman" and "JLA" runs, like Lex Luthor's obsession with Superman.
* Justice League (2017) - The film features characters and storylines from Morrison's "JLA" run, including the inclusion of the Flashpoint paradox.
* Doom Patrol (TV series, 2019-present) - Morrison's run on "Doom Patrol" heavily influenced the series, including the character designs and storylines.
* The New Mutants (2020) - The film features the "Demon Bear" storyline, originally written by Morrison in "New Mutants" #98.
He has also written or co-written screenplays for some films, including:
* The Invisibles (2000) - A film adaptation of Morrison's comic book series, but it was never completed.
* Ararat (2002) - Morrison co-wrote the screenplay for this historical drama, although it's not based on any of his comics.
* The Batman (2022) - Morrison is credited as a writer on the film, though his exact contributions are unclear.
While Morrison hasn't appeared on screen himself, he has been involved in the behind-the-scenes development of various film and television projects, particularly those related to his comic book works.