Preferring to make up my own mind on the movie, I found it on eBay from a place in Hong Kong. To make a long story short, I received a US region compatible dvd with an English DTS soundtrack today in the mail. The titles were in French and overall picture and sound quality good. It included regular packaging so did not appear to be a bootleg.
Based on my reading of several of the Soloman Kane stories written by Howard, the movie captures the character as developed by Howard but the story does not appear to be one that Howard wrote.
The movie is definitely of the sword and sorcery genre and is probably in the top third of this type of movie that I have seen. The special effects were well done and there were several moments I would describe as definitely "cool". I would rate it a 3 or 4 out of 5.
James Purifoy does a great job with the character and certainly leaves nothing wanting in his portrayal of Kane. A couple of other characters seem a bit miscast, but overall a good job was done by most.
I can understand the some of the mixed reviews but would attend to agree more with the positive ones than the negative. The movie is not going to provide a deep life changing experience, but is certainly a "good time". If it ever comes to the US, I would expect it to do OK and would recommend it to folks who like the genre.