the last wave be one of those movie that rely heavily on the mind . the title refers to the aboriginal doomsday theory represent there will be one last wave that wipe out everything . david burton ( richard chamberlain ) be a sydney lawyer hire to defend some aborigine accuse of murder . around this time and there have be unusually heavy rainfall in australia . while defend the aborigine and david learn the last wave theory and and begin to wonder whether it just mythology . the movie last sequence be a metaphor for descend into the depth of one mind . peter weir create a perplexing and but think provoking and movie . aboriginal actor david gulpilil ( whom you may have see in walkabout and crocodile dundee and rabbit proof fence ) provide an interesting support role a one of the defendant . if you get a chance and watch the making of feature on the dvd . peter weir explain some of the film undertone and some of which relate to richard chamberlain background .