I still can't stop but think how stretched out the Hobbit films were, for an otherwise short book. That's a sin that stains forever with me. The Lord of the Rings films, do have their own flaws, but they're fairly contained and can be debated as to whether they were good or not. I have so much trouble excusing anything with the Hobbit though.
And I hope we never, ever see anyone tackle The Silmarillion. Simply because, there will be so much improvised fluff in that would-be film, that it'd make the Hobbit films blush.
They jammed in a freaking elf and dwarf love interest angle somewhere in the movies.
In the entire Middle-Earth Legendarium, Elves and Dwarves were bitter rivals to eachother to the point where the idea of A elf and A dwarf would never work together in a conceivable fashion that constitutes a relationship to that extent. Legolas and Gimli I was okay with because they developed as functioning partners for the sake of the Fellowship when the call was heeded.
But what happened in the Hobbit, was once again a shining example as to how stupidly obsessed Hollywood is, with cramming romance into everything.