Warner Bros. have just dropped the very first trailer for the last Hobbit movie - first teased at Comic Con - and it's full of action, portents of doom... and a very familiar song.

Befitting the fact that this film will cover the climactic battle scenes of The Hobbit, there's plenty of action here, from dwarves clad in armour, to Thranduil and Bard in action, to Azog's orcish hordes marching to war - but it's all punctuated by the chilling vocals of Edge of Night, the song Pippin sings to Denethor as Faramir and his men lead an ill-fated cavalry charge to Osgiliath during The Return of the King. Stirring stuff!

The Hobbit: The Battle of the Five Armies hits theatres this December.