I have laughed at people complaining about Cultural Appropriation, as have many others. Maybe I get it after all. Fantasy fiction, especially Christian fantasy fiction, is not just something I like. It's an important part of my culture. I had heard that the Disney version of "A Wrinkle In Time" had deemphasised the Christianity of the book. That's hardly surprising these days, yet it might have been merely irritating. Collins's review over at The Ringer suggests it is something far worse than that. The Christianity is not merely deemphasised, it has been replaced by another religion, the more modern empowerment gospel. I expected them to lean hard on Meg being a Spunky Gal, because that's what Disney has been doing for decades - and Meg actually is something of a spunky gal, though I don't think any serious reader of L'Engle would say it quite that way.
This is like putting communion elements out as part of the buffet at the PTA potluck.
The review above links over to another by Kate Knibbs from the day before, which is perhaps a savable example of everything that is wrong with the current approach to understanding literature - that a book is important because of what the reader thinks it means and helps them turn into whatever they damn well please, even if that is at odds with the actual meaning. The belief that a book has an actual meaning is under assault. It only has the reader's meaning. As a side note, Knibbs claims it is Seventh Day Adventists who don't believe in giving their children medical treatment, which is the sort of not-even-bothering-to-spend-30-seconds-on-a-search-engine that is probably standard for a woman who thinks that a book and its movie are really about her and her life experience.
We are somewhat used to the Christianity which was part of an historical culture being removed from stories told about it now, sometimes even if they were an important part. One would never know that Downton Abbey takes place in a culture that is C of E, nor that American presidents regularly talked of religious matters in both their formal addresses and everyday conversation. But the Christianity is not just part of the scenery in L'Engle's books, they are central.
Reviews will discuss whether the movie was done well or not. People who like movies qua movies will find some of that interesting. How were the effects? Is the acting believable? I have no interest. If you replace the lyrics to Handel's "Messiah" with Rod McKuen, I don't much care about how the violinists were doing.