My favorites animations:

God Save Me.
What friends are for?
Big Thank you
Life of Jesus Christ
Easter Joy Hope and Peace
Waiting for You
When I fall in love
Happy Chinese New Year
Happy Chinese Monkey New Year
12 Monkeys
George Bush and Bin Laden

The followings movies files are bigger, but funny:

Movie of Honda Accord Wagon
Movie of OlympicB
Movie of OlympicG
Movie of OlympicJ
Movie of OlympicS
Movie of Chinese Movie Stars for SARS