Teresa Palmer was discovered on the street and cast in this movie without an audition and without ever having acted before.
The opening scenes of trees in the skies full of leaves were derived from the fact that a camera operator left the steadicam switched on and it filmed some tree-tops. The shots looked great so some crew went back and shot some more leafy sky footage.
According to the audio-commentary, the film was visually inspired by 'Gus van Sant''s, Elefante (2003).
Joel Mackenzie previously attended the school where the movie was filmed.
A variety of different film formats were used in the shooting of this picture including XD Cam - standard definition, Super 16mm film and HD Cam Cineata - high definition.