Caught this one on Friday, happened to be one of the few films playing at the time I had to see a movie.  Decent film, nothing noteworthy.  A nice action film as far as that goes but form the onset my mind kept referencing Apocalypto (which I really enjoyed.)  To me 10,000 BC made Mel Gibson look like a genius and I'll leave it at that.  As for digital artifacts, I may have missed them.  Honestly I fell asleep a bit, not sure if it was the movie or just that I was tired from a long week.
Not on my must see list but an entertaining movie depending on how demanding a viewer you are.