Where do i begin for this one.
First off, lets just start with casting. I'm not sure who was in charge of casting but wow you did an HORRIBLE job. Not only do the voice actors not know how to express emotion and make us FEEL something, the dialogue is all robotic! Seth Rogen (Pumba) was the only decent individual that matched his role and thats just because it's the easiest role to fill!
Secondly, changing certain plot points didn't flow as smoothly, in other words, "if it ain't broke, don't fix it." The hyenas were all of a sudden not comic relief or goofy, but instead more on political and serious. Timo and Pumba have a whole new group of friends in there jungle paradise, which isn't a big deal, but it makes it seem less like a special place that the three share.
Thirdly, most of the movie is a visual flex, they focus less on story and more on trying to show you what their capable of with live action. There are scenes that will unnecessarily take longer than it should, just to be visually appealing.
Finally, this movie did something so wrong, unlike the other Lion King. Instead of showing us emotion, they would consistently try to express it with dialogue. SHOW MORE, SAY LESS. You can say its because the other Lion King was animated and its easier to pull off, but i don't think so.
Basically, been preaching this for a long time, PLEASE Disney, stop doing these remakes, you guys are ruining classics for the future generations. I know its more for the MONEY that these films are made, but at least put a little effort. Big Fat Thumbs Down!