Len Lye's animations are magical viewing for little ones...
Ari loved them when he was two or three.
I love ACMI. They have some excellent exhibitions which are often great
for kids (like Len Lye back in 2009), a collection of thousands of flicks
on DVD and film reel (and available for us Victorians to borrow through
our local libraries) and a fantastic shop filled with all sorts of cinematic
resources. If you find yourself in Melbourne, you must make time to visit.
If you like this Len Lye animation there are lots more on YOUTUBE