The Guardian has run an amusing and interesting brief that decodes the political subtext of 11 feature-length cartoons [url]. This comes about because 'Fox News anchor Neil Cavuto thinks Happy Feet, this season's blockbuster animation, contains "far-left" propaganda.'
Below is a summary of the decoding:
Happy Feet: anti-Christian-coservative; anti-totalitarian; leftwing bias
Antz: anti-Nazi; utopian; pretty leftwing
101 Dalmations: anti-fur; anti-rich; 'a potent message of direct action'
Flushed Away: anti-racist; anti-French; non-materialistic
Ice Age: environmental, but with the messages that climate change happens anyway, folks
The Incredibles: left and right; anti-litigation; anti-insurance
Cinderella: 'The prince is essentially seeking to break the stranglehold of privilege where the rich merely marry one another, in perpetuity, ensuring their wealth and position is never distributed beyond their estates.
Team America: a very undefinable political leaning
Pinocchio: 'severage of the self from the conscience... arriving at a human truth through the synthesis of these divided selves, hints broadly at the dialectical materialism that is the lodestone of Marxist theory... [or] the scriptwriters just loved insects.'
Snow White and the Seven Dwarfs: pro-underdog
Lady and the Tramp: 'The overriding sense is that the legal system has been concocted not to promote equity and fairness: on the contrary, to keep the poor in their place with needless harassment and random acts of violence.'
I would also point people to the TV series Dinosaurs, which was really rather overtly political and leftwing - see the wikipedia discussion of this.