All the animals that live in Milele refer to it as Milele, but around the time Simba is born the area is referred to as the Pride Lands.
In four clips (0hr 32min 28sec; 0hr 33min 12sec; 0hr 42min 26sec; 1hr 38min 38sec), some of the lions emitted sounds of American mountain lion, which is a purring cat (subfamily Felinae). True lions are roaring cats (genus Panthera), along with tigers, leopards, and jaguars.
Although the cinematic of it is understandable, no lion cub would ever be left totally alone at Kiara's age, and lionesses rarely ever give birth to just one cub at a time. Prides also should consists more than just one female (referring to Simba's pride). Lastly, since this is "Factual Mistakes," animals can't talk. Totally ruined the movie.
Mufasa is proven to have an excellent sense of smell, proven by being able to smell duck flowers on Sarabi from her valley, despite her not having been there for days. But he did not smell Kiros on Taka after Taka betrayed Mufasa and joined the white lions.
3 white lionesses are last seen chasing Zazu as he is carried away by a stork. After Mufasa defeats Kiros the battle is over, with Mufasa victorious, and the lionesses are never seen again.
When Chigaru cries out, "They're coming this way, Obasi! Two lions for every one of ours, each one bigger than the next. . ." those words actually indicate that the coming lions are getting smaller and smaller. The right words would be "each one bigger than the last." But Chigaru was scared, so this frantic mistake is understandable.