Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Featuring a fresh faced Mel Gibson as a young cop who faces down mobile savages on the highways of a dystopian Australia of the future. Mad Max managed to make a virtue of its modest budget, with some startling, influential stunt work and array of weird and surreal characters. Mel Gibson is perfect in the role of the idealistic young cop who feels that he is slowly becoming dehumanised by the brutality he is embroiled with on a daily basis. He quits the force and takes off with his family to try and escape from the madness and decay that is nearing fever pitch. However when his family are killed by a gang of marauding bikers, Max becomes the very thing he was trying to avoid, a broken, monoslylabic, avenging angel in souped up pursuit car. Very much a character in the vain of Clint Eastwood's man with no name from the spaghetti westerns, Max is a brooding, intense man with a capacity for terrible violence.
Positive