Fist saw this when i was 7. although this is one DARK film, this did not scare me. But there was a scene I did not like, I would cover my eyes when it came on, where Penguin bites an annoying mans nose and blood flies a bit. but, saying that, it only lasts about a second.
I also was not keen on seeing the Penguins bile spewing corpse underwater at the, end, gross, but not scary.
The "charred" corpse looks cartoony.
Catwomans come have sex with me thing went over my head.
This film other than the aforementioned did not bother me and I watched it through my childhood.