Been rolling The Green Knight around in my head since seeing it last night. On the fence whether it's a full five stars or simply a near-perfect four-and-a-half. As a kid I was super into King Arthur; I remember devouring The Once and Future King, then trying the epic poem of Gawain and the Green Knight and being completely baffled. So I'd consider this a highly successful adaptation, as I found myself both enthralled and confused as hell. Great flick.
But I was a little thrown by one thing in the story, really a minor confusion more than a quibble. When Barry Keoghan takes the horse and the axe, when does Gawain get the axe back? I don't remember a part where he explicitly retrieves it, but it was a late screening and the movie got me in my head a bit so I may have missed it.