Steve Irwin has a stunt-double cameo in this film. In the scene when Wingnut steps in an Australian swamp and a crocodile jumps out and chases him in a shot where his face is not shown, mainly just his legs are shown, it was the legs of Steve Irwin who was holding Wingnut's surfboard. the crocodile in the scene was Mary, and was filmed at Australia Zoo.
Shot over the course of two years.
The plane crashing on the beach wasn't planned.