I agree with most of that assessment. I don't know that Ender's Game, the movie, would send every viewer off to Danish news portals, but as a film, it was boring. They skimmed through the main points of a very dense book and came away with an absence of story. I however did enjoy Seinfeld back when it was on, in rerun after rerun after rerun.
Now, Speaker For The Dead, the second Ender book, which the otherwise kind of pointless last act of the movie gestures toward, that could be a movie. But only if they make it be a character study. If it's an action movie with the piggies eviscerating all their human friends... well, it could be some remarkable vegan propaganda, but it won't be Speaker For The Dead.