Hmm ... Some nice films have already been mentioned (StarWars, Shrek, Mel Brooks, Sting, Big Fish, ...).
Others need mentioning (not restricting to favourites but to films I like):
* Ice Age
* Dragonheart (only the first! - the best dragon animation so far)
* Adams Family
* Lady L
* The Frisco Kid
* The Downfall (really good!)
* Forest Gump
etc
Dont get me started, I've already deleted a couple