I loved this movie as a kid, so it was one of the first movies we showed to our son, since there were no "inappropriate" ratings. Afterwards, I thought, ooof, what a horrible movie for our little guy!
It introduced him to fighting. It includes scary scenes like buildings crumbling on top of people (he stood bold upright when that happened) and rocks falling on a character's head. There were mean snakes, tigers, etc. all throughout. The next day, when friends tried to carry him (he was typically very social in the past), he cried bitterly with a horrified look on his face (were they taking him away like the monkeys took Moguli away?).
He's fine now, a couple days later, but I wish we had waited a bit longer before showing him this movie.