Documentary ·Horror · 1984 · 52m The Making of a Horror Film ✓ Seen + Watchlist ↗ Share No poster Director Cast Derek Ford as Self Peter Mackenzie Litten as Self Belinda Mayne as Self Stephen Minasian as Self Caroline Munro as Self Edmund Purdom as Self Synopsis Documentary/promotional film on the making of the horror film Don't Open Til Christmas. Key Collaborators Follow the Thread More Documentary → More Horror → Agent-readable