During the festive period, Christmas fans will often snuggle up to watch feel-good movies in the run-up to the big day. Fortunately, the choices are endless - with cult classic Christmas films including Elf, Love Actually and Home Alone remaining firm favourites.
However, Dr Seuss' How the Grinch Stole Christmas arguably tops the list for some. Although the film was released over 22 years ago, fans are only discovering a hidden and jaw-dropping detail, which has left them surprised.
As December is finally upon us, households across the globe are switching on the film to enjoy with their closest friends and family.
But an undiscovered detail about Whoville has left them running to social media to discuss.
Flocking to Twitter, viewers sparked a hot discussion about the opening scene of the movie, which discusses the location of the film - Whoville.
While many of us assume that Whoville is a fictional place with no significant meaning in the plot, people have missed a major detail for decades - and it's been right in front of their eyes.
In fact, the town of Whoville is a lot smaller than we all expected - so small that it actually represents the size of a snowflake.
The film's intro starts by describing: "Inside a snowflake, like the one on your sleeve, there happened a story - you must see to believe."
The film, which is owned by Universal Pictures, has people baffled as they discuss the opening line.
One shocked user exclaimed: "DID Y’ALL KNOW THE GRINCH TAKES PLACE IN A SNOWFLAKE!!??????."
A second Twitter user admitted: "'Never realised that the Grinch lives on a snowflake."
"Anyone else completely forget that Whoville was on a mf snowflake?" Another questioned. "The Grinch must have been so small."
A fourth penned: "The Grinch taking place within a snowflake still kinda [sic] wild to me."
A fifth wrote: "The fact that the Grinch took place on a snowflake disturbed me as a kid. I kept expecting the whole thing to melt."
What do you think? Let us know in the comments below