A very informative article and overall good take, although there were a couple of points I disagree with. I am thinking of doing the article's embedded poll here.
What Went Wrong With Supergirl: The Tracking, The Comic, And The Marvel Playbook (link | ARTICLE CONTAINS SPOILERS)
By Matt McGloin | Cosmic Book News
June 30, 2026
Excerpt -
They ignored the comic they were adapting. Here is the core failure.
Gunn spent the run-up praising Tom King and Bilquis Evely’s Supergirl: Woman of Tomorrow, the acclaimed graphic novel the film was supposedly based on. The movie goes in nearly the opposite direction.
Director Craig Gillespie has been candid that he didn’t start with the source material, saying he “very deliberately didn’t look at Tom King’s book” and worked off Ana Nogueira’s screenplay instead. He eventually went back to the comic and borrowed a few visuals from Evely’s art, but the book was never the foundation.
The biggest change was the ending.
Gillespie confirmed it was Gunn who insisted Supergirl kill Krem, saying Gunn was adamant about it from the first draft and refused to even shoot a backup in case testing went badly. That is not how the comic ends...
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I have said it many times. Some of these... people... have zero knowledge of what they are adapting.