animation for adults

according to the BBC, the top ten animations for adults includes Bambi. (which I haven't seen; I hate the wide-eyed cuteness of Disney animals and can't forgive what they did to the Sword in the Stone). They are basing this list on feature-length movies, so some of the more joyous visuals and characterisations can't be included as they belong to TV series or to shorts.

But Id certainly agree with When the Wind Blows, Persepolis, and Belleville Rondez-vous...(Great storylines, great drawings with their own style ...and faithfully adapted from the books to recreate the whole mood). They have Curse of the Were-Rabbit, which was great but if I could only take one Aardman onto a desert island it would be The Wrong Trousers. (Deeper exploration of the relationship between Wallace and Gromit, more visual energy...).But what makes an "adult animation"? (does rotoscoping count?) ... this list implies (apart from "adult themes" which might mean sex and/or drugs) darkness, depth, but also truth - historical fact, biography or documentary.. with a serious issue at its heart. A balance of joy and horror...