The emotional first look at the new Game of Thrones documentary

Note: The trailer shows on-set footage from scenes which are yet to air, although they do not appear to show any spoilers. 

HBO are releasing a behind-the-scenes documentary on the making of the final season of Game of Thrones.

The fantasy drama series is set to draw to a close after eight seasons and British filmmaker Jeanie Finlay spent over a year on the set of the saga to treat fans to an unprecedented inside look at the making of the last-ever episodes.

Photo / Supplied - HBO / SKY Network Television

The documentary, 'Game of Thrones: The Last Watch', will air on Monday, May 27 on Neon, a week after the season eight finale and will chronicle "the creation of the show's most ambitious and complicated season."

Producers have promised it will be "much more than a 'making of'" documentary.