Couple of Goofs *spoilers*
Obviously, the biggest goof of all was the lack of Aussie voice actors. But in the film:
When Crysta pulls out Zak's wallet, his height & weight are given in US, rather than metric units (although that may have been done for American audiences).
When Crysta finds out about Zak lying about the forest, she flies off until she sees the barren land. Then she looks down & see humans tying logs to a truck. The truck is left-hand drive.