Movies that you think are actually good, but bad adaptations of their source material?

Here’s my reasonings for my personal choices:

How to Train your dragon: I read the first two books as a kid before watching the first movie. I remember finding it really fun and enthralling. And it also had a bit more “edge” to it’s humor than a lot of the other kid’s books I read at the time. The movies? They have almost nothing in common with the books. But I actually didn’t care because the movie alone was amazing. HTTYD is kinda weird because it’s like a very niche AU fanfic of the original that was written by an actual professional author.

Home: I’ll admit i never read True Meaning of Smek day, and I’ll take people’s word for it when they say it’s good. But I honestly saw nothing bad that stood out about Home. The animation was great, the little alien guy was cute, music went hard as hell for some reason. As someone who didn’t get to experience the source material as a kid, I still enjoyed the movie.

-Transformers (THE FIRST BAY FILM ONLY): God….. I could go on for literal hours about this, but I’ try to keep it short. This movie is not a bad film, and it was my first introduction to the franchise. To me, personally, it’s the kinda film adaptation that makes for a decent stand alone movie, but gradually gets less appealing if you decide to dig deeper into transformers media. After seeing the 2018 reboot, Transformers One, and several of the comics and animated series, the first Bay film feels more like Transformers Lite™️. In almost all TF media, the bots are the main characters who get full story arcs and well rounded personalities. But in the biggest most well-known TF media (the bay films) the bots feel more like expensive movie props than characters, and I kinda think that trend started with the first film.