Thumper from Bambi is supposed to have five sisters, but for some reason, in the Direct-to-Video midquel he now only has four sisters! Looks like Bambi's mother isn't the only one that didn't survive the winter...
Watching the Great Prince walk away at the end takes on a new meaning when you realize that in the novel he wonders off by himself to die. Probably to a deer graveyard
Watching Friend Owl shoo away the forest animals to give newborn Bambi a chance to rest is slightly creepy (but mostly just funny) knowing that he could successfully eat several of them. The chipmunk's disturbed expression in particular makes you wonder if the Carnivore Confusion was being silently contemplated by some of the smaller animals.
What's horrific about Bambi is that the threat of the hunters never disappears. They can show up at any time in their attempts to murder anybody unless of course, they were killed in the camp fire, which some fans imply.
It becomes quite unsettling in Bambi II, where Bambi is lured into a trap in the middle of the day only because his father looked away, and Bambi's would-be surrogate mother sets off a trap which prompts a group of hunter dogs to emerge only because she was lightly shoved into a bush.
Ronno's darkly presence in the original film only comes off creepier if you take the midquel's Character Development into mind. As a kid, Ronno feel victim to Always Someone Better against Bambi, becoming more and more obsessed with proving better than him, and even managing to take on a genuinely creepy presence when he goads him into a fight in the climax. His adult form is the result of his obsessive rivalry with Bambi embittering him into a grim sinister antagonist, willing to take possession of Feline (and even pull what almost comes off as Attempted Rape) if it gives him any means of besting him at last.
The deer call in the sequel. From a deer's perspective, it sounds like a soft, feminine voice calling out things such as "I'm here" and "Helloooo?" The brilliance comes in when you listen closely — there's a seductive note to it, but in a way that's very "off." It sounds exactly like a tool designed by humans to lure in large bucks might be expected to sound.