@salima,
The Dark Crystal, Nightmare before Christmas Lion King, Toy Story, Star Wars original trilogy, Land Before Time series, The Iron Giant, etc.
Yeah, I still like most of those movies I just listed, but my taste in movies has widened quite a bit. I can add more mature titles like Requiem for a Dream, Full Metal Jacket, Jarhead, Paths of Glory, American Beauty, American History X, Donnie Darko, Children of Men, Pulp Fiction, Blade Runner, Rashomon, Office Space, and 2001: A Space Odyssey to my list.
Although I saw Pixar's "UP" in 3D the other week, and that turned out to be amazing as both a children's movie and as a movie in general. It had some very psychological themes that were presented just subtly enough to not ruin the movie for kids, but just obviously enough for adults to catch on.