By coincidence i came to watch this film the other day:
"Sen To Chihiro No Kamikakushi"
since my son watched it on TV.. at first i thought it was just another Pokemon clone or something but sat down to acompeny him... i soon came to realise that this was something totally different - it totally blew my mind on just about every aspect of filmmaking - not to mention the beautiful imagery and emotion intepretation.
anywayhow... if you get at chance to watch it dont go miss it....
My daughter also has "Castle in the Sky", which is a Japanese animated movie that I enjoy very much. An american animated cartoon that I find to be very compelling is "Iron Giant". Probably some of the best cartoon animation I've even seen since the classic Disney days. Vin Diesel performs the voice for the Iron Giant. Interesting.....