- TitleInvasion Quartet (Original title)
- Film / VideoMaterials held in the BFI National Archive
- Film materials (1)
35mm BW Positive - Safety - Combined - 7848 Feet - - C-917933
Master - Restricted access to preserved film
35mm BW Positive - Safety - Combined - 7848 Feet - - C-917933
Master - Restricted access to preserved film