Nala’s Mysterious Eyes
We can’t believe we never noticed this as kids, but now we can’t unsee it. Nala’s eyes change color throughout the movie for no apparent reason.
They’re green one minute, to be blue the next, and suddenly later yet they’re green again. We know this is an animated movie loosely inspired by Hamlet and featuring talking lions, so perhaps changing eye colors isn’t a major irrationality to focus on.
But the color changes just seem arbitrary, rather than having some symbolic meaning to them (for example, eyes turning red when someone is angry sort of makes sense).