I don't know if you've ever seen a movie about vikings, but as far as i know they are few. Of those I've seen this and it's predecessor are the only "true" viking movies.
This movie has pretty bad image and sound quality which is understandable since its old. But it wins my heart for it's story, it follows a kind of norm in viking tales, basically an eye for an eye.
I am no expert in vikings or history but i have read a lot about them and many sagas (if not all) from the "Edda", anyways i liked this movie because it feels natural and real.
Some warnings though:
1. It may not be so interesting for you if you're not interested in vikings.
2. They speak Icelandic and the one i saw had Swedish subtitles only, so beware, you may not understand a word.
