A new Game of Thrones documentary will take you behind the scenes of its final season

We're one episode away from Game of Thrones officially ending and while the final season has left fans a little divided, you can't deny it's the end of an era.

The sneaky folks at HBO have just released a trailer for Game of Thrones: The Last Watch, a documentary about the creation of season eight.

Directed by filmmaker Jeanie Finlay, the two-hour documentary focuses on the people behind the scenes and sets of the final season; we're talking about the crew that built the sets, the designers that made the armour or the makeup artists who made the Mountain look oh so scary.

Game of Thrones: The Last Watch will air on May 26, the week after the final episode of Game of Thrones.