BFI Distribution is inviting bookings from international exhibitors to screen a newly restored concentration camp documentary, known as ‘the lost Hitchcock’.

German Concentration Camps Factual Survey (GCCFS) will be available for screening from April 16 to coinciding with the 70th anniversary of the liberation of Belsen.

The feature doc, shot by army and newsreel cameramen when British troops liberated the concentration camp in April 1945, will be preceded by a 15-minute film to contextualise the often harrowing footage.

German Concentration Camps Factual Survey – previously unfinished – has been fully restored and completed by Imperial War Museums.

The film was for decades was known as ‘the missing Hitchcock’, as director Alfred Hitchcock was brought in as a treatment advisor, working alongside legendary producer Sidney Bernstein.

A special world premiere of GCCFS took place at last year’s Berlinale.