The Melbourne International Film Festival's record for this film includes the note that 'Peter Boyd modified an industrial camera enlarger which was used as a tracking vehicle, the idea being to imitate a live action film. Characters were made from wood, latex, solder, armatures and household cleaning materials.' Source: MIFF (http://miff.com.au/60_years_of_miff/film_archive?movieid=19841). Sighted: 14/9/2012