https://www.animenewsnetwork.com/news/2023-03-19/cells-at-work-manga-gets-live-action-film/.196153
I hope they have a big budget.
Countries where Cells at Work should be available: http://unogs.com/title/81028791
Looks like CODE BLACK is only available in Japan on Netflix (it's on Crunchyroll): http://unogs.com/title/81392162