The Green Knight
This a two hour ten minute retelling of the Arthur Extended Universe story Sir Gawain and the Green Knight. It's a slow and meditative movie, with several extended sequences lacking in dialog. Some of the lines that were spoken were hard to understand, so working well as silent film is a plus.
Without spoiling any of the story, let me recount a scene near the end. Having left the house of the mysterious Lord (most characters lack names) who played the game of exchanging winnings, Gawain makes his way to Green Chapel, arriving a day earlier than appointed time. He Sees the Green Knight sitting, eyes closed in a throne at the back of the broken down hall. Gawain places the axe down at the foot of the Knight and sits on the floor to wait. There's somewhere between two and five minutes of silent waiting, the camera lingering on the closed eyes of the Green Knight's face mixed with cuts to Gawain coming to terms with the fate ahead of him. This is used to show the passage of time until the next morning when the Green Knight awakens.
If you are stoned enough to find that deep or patient enough to tollerate that sort of slow moving story, this is a pretty entertaining retelling of the legend. If you'll be checking your phone when nothing happens for a while, stay away.
I think it helps to already know the story, and it also helps to be willing to accept some changes to the story. There's a fox in this version, for example, that is not in the one I read.
A six day journey out of ten.
Also get ready for a bunch of different ways to pronounce "Gawain".