Elf always has been one of our favourite Christmas movies… until now, that is.

After clapping eyes on a sinister version of the film on YouTube, we can't help but look at the 2003 classic in a whole new light.

And we're not the only ones.

The footage, which has racked up over 4,000,000 views since its upload in recent days, has some left members of the public feeling every so slightly creeped out.

"OK, that was terrifying," wrote one while another added: "I'll have nightmares now."

With a little slick editing, Cinefix have managed to manipulate this holiday classic into a film we definitely wouldn't want to watch by ourselves.

Take a look at this, ladies.