If you’re lucky enough to have read my novel, Blood and Judgment (it’s not too late! Click the link), you’ll know that Shakespeare’s play, Hamlet, was based on a story about a prince named Amleth, found in the medieval history of Denmark, Gesta Danorum, by Saxo Grammaticus. So doing a Viking movie based on the story seems an obvious enough angle. However, Robert Eggers’ violent new film “The Northman” (which I saw last night, wearing my Viking clothes, in a free preview in Minneapolis) still owes more to Shakespeare than to Saxo.

If I were Danish (come to think of it, I’m a quarter Danish), I’d be a little offended at how my country’s Viking heroes are treated in the entertainment media. The History Channel’s egregious Vikings series took the Danish hero Ragnar Lodbrok and shifted him to Norway. Eggers’ film about the equally Danish Amleth starts in Norway, then moves on to Russia and Iceland.

The set-up is that Prince Amleth is the son of King Aurvandill, of some Norwegian kingdom whose name I didn’t catch (the dialogue was consistently difficult to understand. Maybe I’m just old and deaf). Shortly after his return from a Viking voyage, Aurvandill is killed by his bastard brother Fjolnir (Feng in Saxo, and in my book), who then takes the queen (Nicole Kidman) and tries – unsuccessfully – to kill Prince Amleth, who manages to flee in a boat, repeating his vow: “I will avenge you, father. I will save you, mother. I will kill you, Fjolnir.”

We next meet him as a grownup (played by Alexander Skarsgård) in Russia, where he has joined a group of berserker warriors who fight shirtless (horrific scenes of rapine and plunder). By chance, he learns that Fjolnir has been driven from Norway by King Harald Fairhair, and is now a sheep farmer in Iceland. Amleth cuts his hair to look like a slave (a nice, correct historical detail) and sneaks aboard a ship of slaves headed for Iceland and Fjolnir. Once there, he quietly lays his plans to kill his uncle, aided by a Slavic witch (Anya Taylor-Joy) who vows to help him with her “earth magic.”

Amleth will learn that his own life story isn’t as simple as he remembers. But that knowledge will not interfere with his vengeance. The final showdown with Fjolnir, on top a volcano, takes the revenge story even farther from Saxo’s account than Shakespeare did.

What shall I say about this film?

First of all, I must say that “IT” has finally happened. By “IT” I mean the arrival of that elusive creature history buffs and reenactors have awaited so long. At long last, there is a good Viking movie. Possibly a great Viking movie.

That is not to say it’s a pleasant movie. It’s dark, dark, dark. You’d think there was never a sunny day in the 9^th Century. Almost all colors are muted (I understand this to be a characteristic of Eggers’ style, but my costume historian friend will not be happy with the lack of bright colors). The only exception I recall is one scene early on, when young Amleth covers himself with a vivid red cloak to escape the royal farm unseen (which seems to me slightly counterintuitive, but no doubt there’s some thematic purpose I’m not bright enough to grasp).

Otherwise, the costumes, sets and props were very good (by movie standards). Fjolnir wears lamellar armor, which will annoy many Viking reenactment group authenticity officers. The great hall of Amleth’s father has its high seat at the end of the hall, rather than half-way down one side-bench. A headband with bangles that Nicole Kidman wears is based on a jewelry reconstruction no longer considered accurate (I read this somewhere). The horses in Norway are too tall (though the ones in Iceland are fine).

But by and large the authenticity is pretty good. Better than we’ve seen before.

For me, the Vikings have been the center of my personal Romanticism since I was about 12 years old. When I’ve dreamed of a good Viking movie, this wasn’t the sort of thing I was hoping for. But that’s just me – it’s a fallacy to judge a work of art based on what you’d like it to be. I think “The Northman” is very successful in being what the director intends.

The darkness of the cinematography mirrors the darkness of the story. The kind of revenge-obligation Amleth feels is entirely authentic to the period (and many other periods). Even when Amleth gets an opportunity to walk away at one point, he can’t do it. It would violate his deepest convictions; damage his soul more than death.

But the revenge is in no way glorified. Amleth’s road is mired in blood. His father initiates him in a blood ritual. He and his berserker friends exult in shedding blood. The Viking religion is bloody, he sees visions of blood, everywhere blood is shed cheaply. There’s nothing romantic about it.

But there is something mythic. The gods are around every corner. The wolves (foxes in Iceland, where there are no wolves) and the ravens are always watching. And sometimes the gods themselves appear. Drawn, it seems, by the blood, just like the wolves and the ravens.

I could make an argument, I think, that Christianity is conspicuous in this movie by its absence. Amleth has no way of avoiding his fate in a world without grace.

But I doubt that’s what Eggers has in mind.

In any case, here’s my summation: “The Northman” is bloody, harsh, hyper-violent and disturbing. It is absolutely not for children or the sensitive. But it’s also brilliant and unforgettable.