alt Hacker News> The Wizard of Oz (the one you know of) was a remake.
I'm not sure it's quite fair to call the 1939 film a "remake". It was one in a line of adaptations of the book, and isn't otherwise really related to the other adaptations. It isn't the first, or the last, but it is the most famous.
The difference is between "I can tell this story better/more engaging/more entertaining/more realistic" vs "let's cash in on the success this movie had five years ago"
The Wizard of Oz was a new interpretation of Baum's original story. They put enormous effort into making the new film better than other interpretations, of which there were several. Which is why it's a successful, beloved classic!
The same really can't be said of this week's Marvel/DC remake of whatever they made a few years ago. It's just about being a cash grab and nothing else.
P.S. If you've never heard of the sequel 'Return to Oz', do yourself a favor and watch it without doing any research. Just go in straight blind, it really enhances the experience. If you drink, keep a bottle nearby, you'll need it.