Designed partly as propaganda to show cheery soldiers having the time of their lives, they were carefully choreographed to send personal messages back to their home towns.
More than 600 examples of the films, lost for decades, were rediscovered in the basement of Manchester Town Hall during a refurbishment of the building years ago.
They will now be broadcast for the first time since the Second World War in a new Channel 4 programme, entitled Calling Blighty.
Channel 4 and the North West Film Archive have already put out on appeal seeking veterans who served in India, Burma and Sri Lanka and their families, with the hopes of including their reaction in a final broadcast.
The reels include footage from Mr H Drinkwater, a Leading Aircraftsman in the RAF, who tells his family: “I hope you are all right at home. I’m not doing so bad out here. It’s a bit warm. Getting decent grub, but missing the old fish and chips and a pint now and then, you know.”
With a cheeky look to camera, he tells his wife: “Anyway, keep the bed warm until I get home and we’ll get up them stairs. Cheerio”
Sam Marshall, a Gunner from the 21/8 Rajput HAA Regiment, told his family back in Manchester: “Well mother, Sam calling. I hope you’re quite well and in the pink.”
Other men are seen playing darts, polishing their specs and larking around in the background.
The messages are just two of hundreds recorded between 1944 and 1946 by the Directorate of Army Welfare in India.
Without the possibility of home leave, and in an atmosphere where disease was rife and morale low, the Ministry of Defence embarked on a scheme to boost them with filmed messages to home.
Taking up to three months to arrive, with some servicemen dying before the messages got home, families and friends were invited to local cinemas to catch a glimpse of them.
These particular films were found on 25 reels in rusting film canisters in the basement of Manchester Town Hall, with paperwork detailing the names, ranks, regiments and serial numbers of participants surviving alongside it.
Steve Hawley, professor at the Manchester School of Art, said: “I saw an amazing film of servicemen in the second World War speaking to their loved ones, and mentioned this to Marion Hewitt, the Director of the North West Film Archive.
“To my delight, she told me that three decades previously, a pile of rusting film canisters had been discovered in the basement of Manchester Town Hall during refurbishment, and these were about to be thrown out when they were rescued by the Archive.”
Calling Blighty will air in early 2016 on Channel 4. The film is produced by Oxford Scientific Films.