For surreal Australian silliness you can beat Yahoo Serious' recent film Reckless Kelly (1992). From the opening shot, a high speed helicopter shot heading over the ocean towards the land (a classic film cliché, made interesting by being shot upside down--cause this is the Australian coast, mate!), you know you're in for some inspired silliness. Yahoo plays the grandson of legendary bank robber Ned Kelly (played by Mick Jagger in an earlier film). He lives on an island paradise--a rundown pub in the middle of a national park--with his extended family, and still dabbles in the redistribution of wealth. When a villainous bank president threatens to sell his island to the Japanese, Ned must travel to America to raise the money to pay off the mortgage, and in the process become a low budget film star. With Alexi Sayle (The Young Ones) as Major Wibb and an assortment of Australian character actors and other marsupials doing their own accents.
Review of Reckless Kelly
