This page contains unmarked spoilers. You Have Been Warned!
While Up is an adventure film about Carl Fredericksen going to South America to fulfill his wife's dying wish of having an adventure, there are some frightening moments, even for a Darker and Edgier Pixar film.
- The Corrupt Corporate Executive, just putting his hand on Carl's fencepost and staring ahead. Completely silent and deadpan Evil Gloating.
- Carl losing his house is this and a Tear Jerker. He hurt someone after losing his temper and is clearly feeling guilty and ashamed of himself, and looks so small and vulnerable walking into the courtroom. And then the Corrupt Corporate Executive gets his house taken away after having him declared a "public menace". Carl's been giving off his cantankerous attitude up until this point. Now we're seeing a terrified and helpless old man who made a mistake and is losing everything because of it.
- The Reveal of just how batshit insane Muntz is, particularly when he's fondly caressing the helmets of the people he's brutally murdered.
- The part where Muntz tries to kill Kevin, Doug, and Russell with a shotgun.
- And there's the part before that, when Muntz takes a tied-up Russell and puts him on the landing ramp, lowers it, and casually walks off. While they are about ten thousand feet in the air. Remember how Muntz died? If Carl hadn't showed up when he did, that would have been Russell.
- Pretty much any time someone almost falls to their death, which happens fairly often. Particularly, when Russell falls backward off the porch steps while the house is high in the air. Seriously, be careful when watching this movie if you're afraid of heights.
- Those with cynophobia (fear of dogs) will feel really uncomfortable from the many times a dog or pack of dogs hunt down the protagonists.
- Likewise, dog lovers will be disturbed by the subtle background sound of dogs howling in pain as Muntz talks about how many he has lost over the years.
- Muntz's Disney Villain Death might have been terrifying but at least it was fast. The original storyboards had him try to chase after Kevin and getting lost forever in the maze-like mountains, doomed to die slowly from starvation and cold.
- Even though it was very fast, the look of utter terror as he plummets is suitably unsettling.
- Picturing the demise of the other travelers. They probably met Muntz at his most affable. But Muntz's paranoia would soon get triggered by a random comment or perceived insult, and then Muntz would slip into that creepy Tranquil Fury. They would know this man is not just crazy, but homicidal. And it is too late to escape... and nobody's coming to save you, deep in the jungle.
- As provided in the Pixar Nightmare Fuel Page, Carl hits Steve with his cane for accidentally damaging the former's mailbox, causing his head to bleed. Pretty dark, eh? The commentary has Pete Docter noting that in several screenings people were laughing at the initial hit, but then the blood appeared and you could suddenly hear a pin drop.
- Alpha is this when he's not talking, or when his voice modulator is working properly. He's a very smart, intimidating and vicious doberman who has no problem flinging Dug off a cliff or trying to maul him.