- TitleTwilight's Last Gleaming (Original)
Das Ultimatum (Alternative)
Nuclear Countdown (Alternative) - Scripts / DocumentsMaterials held in BFI Special Collections
- Ephemera: publicity - Twilight's Last Gleaming [Pressbook - small] - - PBS-49381
Script - TWILIGHT'S LAST GLEAMING / Nuclear Countdown; Ultimatum - Original story: Based on the novel 'Viper Three' by Walter Wager - Script type: Combined continuity - Script date: 21-1-1977 - - SCR-18160
Script - TWILIGHT'S LAST GLEAMING / Nuclear Countdown; Ultimatum - Original story: Based on the novel 'Viper Three' by Walter Wager - Script type: Combined continuity (includes cuts made by British distributor) - - SCR-18161