Dev Patel Goes Medieval in the Unsettling First Teaser for 'The Green Knight'

Fresh from making two of his last four films in Australia — Lion and Hotel Mumbai — Dev Patel is heading somewhere completely different. Stepping back to medieval times, he's jumping into the fantasy genre, messing with Arthurian legend and swinging around a mighty sword, all thanks to the dark and ominous The Green Knight.

Based on the 14th-century poem Sir Gawain and the Green Knight, The Green Knight casts Patel as Sir Gawain. Nephew to King Arthur (Sean Harris), he's a knight of the Round Table and fearsome warrior. The character has popped up in plenty of tales, but here, he's forced to confront the green-skinned titular figure in an eerie showdown.

As the poem explains, the Green Knight dares any other knight to strike him with an axe, but only if they'll then receive a return blow exactly one year and one day later. Just how closely this film adaptation will stick to that story is yet to be seen — however the just-dropped first teaser certainly looks more than a little moody, brooding and creepy.

Patel is in great company, with The Green Knight also starring Alicia Vikander, Joel Edgerton and Dunkirk's Barry Keoghan. Games of Thrones' Kate Dickie pops up as Guinevere, while her co-star Ralph Ineson — whose also known from the Harry Potter flicks, The Witch and the UK version of The Office — plays the Green Knight.

And, it's the latest film by an impressive — and always eclectic — writer/director, with David Lowery's filmography spanning everything from Ain't Them Bodies Saints and Pete's Dragon to A Ghost Story and The Old Man and the Gun.

Check out the teaser below:

The Green Knight will release in the US sometime over America's summer, but it doesn't yet have a release date Down Under — we'll update you when it does.