The writing of the film was placed in the hands of Shay Hatten and Michael Finch. In an interview with Finch by Looper magazine, Finch stated that there were several previous films which influenced his writing stating: "A lot of this begins with Chad being inspired by other films, other genres of film, be it Once Upon a Time in the West, The Good, the Bad and the Ugly or be it Bullitt or Dirty Harry or a Zatoichi film." [41] The role played by the blind assassin portrayed by Donnie Yen references the blind swordsman in the Japanese film series centred on the character of Zatoichi. [41] The name of the character Killa Harkan is a reference to Berlin-based Turkish rapper Killa Hakan. [42] [43] Casting [ edit ] Jang, Ah-reum (March 22, 2023). " '존윅4' 4월12일 국내 개봉 확정…에펠탑 배경 아이맥스 포스터 공개". Naver (in Korean). Archived from the original on March 25, 2023 . Retrieved March 24, 2023. While director Chad Stahelski and star Keanu Reeves initially affirmed that John is deceased, [8] [9] Stahelski later stated that the ending was intentionally left ambiguous and open to interpretation. [10] [11] [12] Marko Zaror as Chidi, the second-in-command of the Marquis de Gramont and one of the antagonists of the movie. [19] Pappademas, Alex (April 15, 2019). "The Legend of Keanu Reeves". GQ. Archived from the original on April 15, 2019 . Retrieved May 21, 2019.

Lee, Chris (March 29, 2023). " 'We're Going to Do the Biggest Stair Fall You've Ever Seen' ". Vulture . Retrieved April 11, 2023. Nordyke, Kimberly (May 7, 2023). "MTV Movie & TV Awards: Full List of Winners". The Hollywood Reporter. Archived from the original on May 8, 2023 . Retrieved May 8, 2023. Ayoob, Massad (May 29, 2012). "Thompson Center Single Shots". Massad Ayoob's Greatest Handguns of the World. F+W Media. pp.241–266. ISBN 978-1-4402-2877-3. [ permanent dead link] Ewens, Hannah (May 30, 2022). "Rina Sawayama: holding herself tight". Rolling Stone UK. Archived from the original on July 10, 2022 . Retrieved July 1, 2022. Anderson, Erik (June 30, 2023). "Hollywood Critics Association 2023 Midseason HCA Awards: Spider-Man: Across the Spider-Verse, Past Lives, Air are Top Winners". AwardsWatch. Archived from the original on July 1, 2023 . Retrieved July 3, 2023.Near the start of the film, the character of Caine is shown handling an opulent gold watch from the jeweler Carl F. Bucherer with an image portrait of his daughter inside of the gold case closure lid. [60] Filming [ edit ] Pedersen, Erik (June 29, 2023). "Golden Trailer Awards: Cocaine Bear, Only Murders In The Building& Oppenheimer Among Top Winners – Full List". Deadline Hollywood. Archived from the original on June 30, 2023 . Retrieved June 30, 2023.