Cheaper to watch than this: https://www.ozbargain.com.au/node/920610
For those who don't have Prime, watch for free using Kanopy app. You'd need to create an account using your public library card number. Most libraries in Australia offer credits to watch stuff on Kanopy. If you don't have a library card or your library happens to be one of the few who don't, you can create an online account with several libraries who do e.g.,
https://www.yourlibrary.vic.gov.au/joinonline/
Kanopy is really good 👍