Brits urged to check list of old DVDs that could be worth a fortune and sitting in your home

If you live in the UK, you've probably got a cupboard somewhere filled with old DVDs that your Grandma got you for Christmas when you were young and watched once.

Well, if you're of a certain age, and you never summoned the energy to sell them on eBay, then your patience - or laziness - may well have turned into a long-term investment.

You only need to look at the likes of vinyl records, Pokemon cards and classic video games to realise that retro is in fashion, perhaps because so many people are nostalgic for times gone by.

We Brits love our collectables and while it make some of us feel very old that DVDs, or dare I say it, videos, are seemingly now recognised as memorabilia. Why? Well, it seems as if we're all missing the simpler times renting a new video on a Friday in Blockbuster, rather than scrolling through Netflix for hours trying to pick the latest film.

And it turns out that if you've managed to keep hold of some older DVDs for a while, or if you're simply a fan of older films, then you could have some real cash in the attic.

Bally Casino have managed to work out the 15 DVDs that would bring in the most moolah, so make sure you check this list before handing them away at a car boot sale.

Personally, I was always disappointed that my dad opted to sell The Incredibles on DVD for just £2 but fortunately for him, the Pixar classic doesn't quite make this list.

It includes:

1. Carry On Films - Complete DVD Collection Box Set, 1958-1992, £350

2. Monty Python and the Holy Grail - Limited Edition Castle Box Set, 1975, £300

3. Blade Runner Ultimate Collector's Edition Briefcase, 1982, £300

4. The Godfather: The Coppola Restoration Limited Edition Blu-ray Box Set, 1972-1990, £300

5. The Avengers '62-64 - Emma Peel Mega Set, 1961-1969, £275

You might be in if you've got some Carry On in the cupboard (Smith Collection/Gado/Getty Images)

6. The Wicker Man - Wooden Box Limited Edition, 1973, £225

7. The World at War - Ultimate Restored Blu-ray Edition, 1973-1974, £225

8. Quatermass Collection - Limited Edition Box Set, 1953-1979, £225

9. Twin Peaks: The Entire Mystery Blu-ray Box Set, 1990-1991, £225

10 Peeping Tom (Criterion Collection Region 2), 1960, £200

11. Withnail & I - Limited Edition Tin Box, 1987, £175

12. The Beatles Anthology DVD Box Set, 1995, £175

13. Red Dwarf - Just the Shows DVD Box Set, 1988-1999, £150

14. Taxi Driver - 35th Anniversary Blu-ray Edition, 1976, £150

15. The Third Man - UK Steelbook Edition, 1949, £125

16. Shrek 2 - Priceless (Smith Collection/Gado/Getty Images)

In fairness, anyone who has managed to keep hold of the whole Carry On collection for this long, is unlikely to cash in now. It wouldn't exactly be in the spirit of Carry On to sell them after all.

Collectables expert Tracy Martin knows how to get your money's worth and she had some advice for anyone who might be lucky enough to own one of these DVDs.

Speaking to The Express, Tracy said: "Collectable value can be due to rarity, different variants to the norm, oddities (misspelling on DVD cases or books), nostalgia - people buying back their memories, limited edition and basic supply and demand.

"There are so many reasons things are collectable. People don't always recognise they have things of value which is why they turn to valuers like me or do their own research online.

"Always research to ensure you get the best price achievable for your collectable by looking to see what similar items have sold for in the past.”

So, while it might take a while for Shrek and Shrek 2 to become valuable (money wise that is), it's probably worth keeping them in your cupboard for another 20 or 30 years just in case they shoot in value in the future, or if they become a priceless form of currency when society eventually collapses.