The two actors Roger Sciberras and David John Kelly rehearsed when they could get together, but used Skype to rehearse when they couldn't.
The whole film was shot in just four hours in the back yard of the director's house.
The opening shot is a combination of 3D and a still matte painting, using a still photo of a sky photographed one week before principal photography.
The campfire is composited into the scene - the actors performed over a stage light.
The actors got to drink real wine - the bottle was French sparkling Shiraz.
The app "iSlate", running on an Apple iPad was used for the clapper board.
Some elements of wardrobe and props were from World War II.