IT was a chance find in a second-hand shop's bargain bin which ended up spending decades in an attic gathering dust.

But now a old reel of 16mm film purchased for just £5 has been revealed to be a long-lost and much sought after horror movie made by a major British studio of the 1940s and 50s.

Film fan Jeff Wells had no idea of the significance of the curio when he scooped it up for his collection, and eventually shoved it in a box which found its way to his loft.

Only when examining the find again last year with a view to selling it on the internet did he realise it was a lost short feature based on Edger Allan Poe's story 'The Tell-Tale Heart' made by Adelphi films in 1953.

The Herald:

Stanley Baker plays the lead role 

The black-and-white motion picture is part of a catalogue of productions the studio has been searching for, and has now be restored and added to the British Film Institute's (BFI) archive.

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Its discovery delighted Kate Lees, current head of Adelphi Films and granddaughter of company founder Arthur Dent, who made a 400 mile round trip from London to Mr Wells' home in Drummore, near Stranraer, Dumfries and Galloway, to pick up the treasured reel

Mr Wells, 65, happened upon the film in 1984 while looking through a bric-a-brac shop in England, where he was working as a nurse.

He said: "I bought the film in Brighton along with some others in a bargain box for £5. At the time it was a hobby of mine to have these 16mm films.

"I didn't know the significance of it when I bought it, I just picked it up randomly."

He later moved to Scotland and took the film with him as it was “particularly interesting”, but forgot about it, until October last year.

After researching the history of the one-reel print, he realised it was Adelphi Film's missing film and contacted them to confirm the significant find.

The Herald:

Jeff Wells with the film reel

Mr Wells said: "Everything from the [house] move just went in the loft and it wasn't until last year when I was clearing out some things I came across it again.

"I was going to try and sell it on eBay for £5 when I saw Adelphi Films was looking for it.

"And lucky I did because it would have been sad to lose or sell to someone else who didn't know the significance of it."

He added: "I was stunned when I saw it was the same one I had, I really couldn't believe it, I thought it can't possibly be the one I have they are looking for. Its discovery was a happy accident."

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The Tell-Tale Heart stars the Welsh-born actor and producer Stanley Baker as Poe’s unnamed narrator in the film, which Ms described as "not for the squeamish".

Based on a ghoulish story penned by the American author in 1843, The Tell-Tale Heart recounts the murder of an old man by the narrator, and then dismembers him and hides his body parts beneath the floorboards of his house.

The Herald:

No reason for the murder is given , except that the narrator is afraid of the old man's 'filmy, vulture's eye',  although the narrator insists they are sane.

When the police come calling later that night, after being alerted by a neighbour who heard screaming, the murderer reveals confesses all, saying they can hear the sound of the old man's beating heart coming from underneath the floor.

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Ms Lees, the third generation of her family to run Adelphi films, said: "We are very excited to have found this film after searching for it for so long and had almost given up hope.

"It is a really excellent film and Stanley Baker is terrific."

The 16mm print and a digital copy of the restoration has been donated to the BFI, and the film will be accessible via the BFI Player for two weeks.

Adelphi films were highly prolific in the mid-20th century, and produced a number of comedies, dramas and short films for cinemas.

Among the starts who worked for the studio were Diana Dors, Joan Sims, Prunella Scales and a young Ronnie Corbett, along with the comedians Spike Milligan, Peter Sellers and Harry Seycombe shortly before the trio launched the Goon Show on BBC Radio. 

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Josephine Botting, BFI Curator said: "It’s always exciting when a missing film comes to light and an addition to both the catalogue of British producer Adelphi and the filmography of Edgar Allan Poe is a wonderful discovery.

"We’re delighted to be preserving the 16mm print and also to make the film available online to new audiences via BFI Player in time for Halloween."

The film can be watched here