Each year, Christmas lovers wait with bated breath for the day when Elf will grace the television so they can crowd around and spread some seasonal cheer. It's a heartwarming film with so much to love.
Now, Buddy the Elf has made a return in a new format as he's landed a festive cameo in Asda's new Christmas advert - leaving fans excited.
Will Ferrell has put on his signature costume once again to star in the TV ad, which first aired on Friday 4 November, but this time he has a new role as an Asda employee in the run-up to the most wonderful time of year.
Asda’s new 90-second advert uses original footage and iconic lines from Elf, merging it with newly filmed scenes.
The cult classic Christmas film has retained a loyal fan base since it debuted in 2003, and people are so obsessed with the movie that many have come up with bizarre theories around the plot.
One strange idea could actually hold some weight as people say their 'mind's are blown' by it.
Trent, an Elf super fan, previously explained on his blog : "So last night I was doing what I do every December and watching Elf on a loop when I had this thought."
He subsequently tweeted the thought, which caused quite the stir. The tweet read: "What if Buddy's step mum in Elf divorced James Caan, got custody of Buddy, renamed Buddy to Brennan, remarried and that's Step Brothers?"
Step Brothers is a comedy starring Will Ferrell and John C. Reilly, and it was released five years after Elf, which would make Elf a prequel. In both films, Mary Steenburgen plays Ferrell's characters' mum or step-mum Also, Buddy receives more of a welcome from his step-mum in Elf than from his biological father.
Regarding the theory, some asked: "Why would Emily get custody of Buddy when Walter is his biological father?"
Trent wrote: "During the divorce hearings Walter likely said Emily could have Buddy because he didn’t want him in the first place and she clearly did want him. She’s more fit to be his guardian."
So this would mean that Buddy's mum divorces his father, gets custody of him, and moves on with her life - and changes her son's name in the process.
Trent also pointed out the similarities between the brothers of Ferrell's two characters, stating that Buddy and Brennan can both sing, and both had a real love of animals.
And possibly the strongest theory of all is that neither character will grow up.
He wrote: "Both Buddy and Brennan cannot function as adults. It’s the main issue in both flicks.
"When Buddy’s step mum in Elf asks, 'How long will you be staying with us?' Buddy says 'forever' and he means it.
"Brennan refuses to get a job and refuses to move outta the house because he’s actually Buddy the Elf and wants to live at home forever.
"So there you have it. Elf is the prequel to Step Brothers and you cannot convince me that’s not true."
People responded to the tweet, with one writing: "My mind is in a pretzel thinking 'bout that."
Another said: "Oh my god."
"You just blew my mind", someone wrote.
"Some heavy s***", one shocked fan added.
Do you believe the theory? Let us know in the comments.