At the end of the movie the first credit that comes up is "For Hilda". This is the dedication to the director's mother who passed away in 2013. She was the inspiration to get the movie produced.
The wine in the bunker scene was provided by Rosnay Organic Wine in Australia. The owner of the actual vineyard's name is Sam - and he is played by Matt James, who holds the initial party.
The cockroach in the movie, Roachie, is computer animated with the facial expression on the roach designed to give him a little personality.