I am not sure how this film entered my watch-list. It is an ancient Viking film. The story reminds a bit about the contemporary series. The Vikings go to Britain, bring back an Englishman, find a way to navigate (here “through the fog” and with another device than in the series) and ravage Britain.
As you can expect from such an old film, the acting is not great, the music is classical and the stages and effects are poor to our current ‘standards’. In spite of that the film is still somewhat enjoyable.
The Vikings are much more than nowadays portrayed as drunk barbarians who have some weird practices. Some obligatory romance and drama is added.
Not a film to put high on your list, but amusing to watch some time.