Director Martin Gooch and the producer Clare Pearce were introduced by a mutual friend. The producer got the full budget and within 2 weeks of meeting they were in production.
Before Scarlett Rayner was cast for Eternity Winter, she was previously interviewed by the director, Martin Gooch, for his previous film, when she was 9 years old called The Search For Simon and two years later she was cast for the lead role in the gatehouse as Eternity.