Do you enjoy historically accurate movies based on viking vengeance sagas? If your answer is yes then this movie is not for you. The most realistic depiction of any type of viking culture is the opening scene where two poorly CGI'd ravens accompany a viking raiding party's return to port.
After that it's a very failed Hollywood attempt at telling a viking story. The costumes are exactly that; costume. The shields look like cardboard and the armor looks like it belongs in an English crusader movie. The horses definitely aren't Scandinavian in descent. The acting and dialog is bland and inconsistent. To top it all off, glass drinking horns... seriously?!
My wife and I couldn't even finish the first act before we shut it off and turned on the 13th Warrior to actually watch a good viking saga. Save yourself the trouble and embarrassment if you value traditional viking cultural depiction.