I didn't like it.
I didn't like the actors, bad special effects, bleh dialogues, inaccuracies....
I’m not veeerrry familiar with Arthurian legend - I know the basics. I read "The Winter King", and I know the "The Mists of Avalon". And from what I do know, I honestly can’t understand why they decided to tack the name Merlin on it at all.
Gah....pitty. =/ It's like a teenager fantasy...I'll avoid this, thank you. :P
King Arthur from 2004, was not a fantastic movie, but not that bad.