Category: Biographical drama.
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Nitram is produced by the same person that brought you Snowtown, Justin Kurzel. So you know it's not going to be a rom-com.
Even if you're not overly familiar with large swathes of Australian history, you probably already know about the Port Arthur Massacre, Australia's worst instance of firearm deaths and the catalyst for our world-famous gun laws. And just like with Snowtown, this movie is a 90% retelling - it tells the overall story, but changes some details.
Nitram (played by Caleb Landry Jones, and based off of the real-life perpetrator Martin Bryant) lives with his mother (Judy Davis) and father (Anthony LaPaglia) who clearly love and dote on their son, but his intellectual disability affects how he interacts with people and the world around him. And given this is the 1970s and 1980s, not much in the way of social support is given - you were expected to tough it out and hope for the best.
We see various interactions between Nitram and his parents that clearly show the struggle they go through to keep him out of trouble and them onto their sanity, as well as Nitram's father's attempt to secure a bank loan to buy a bed and breakfast on the Tasmanian coast that he plans to retire to.