Rita and I saw this when it came out while were on vacation in Pennsylvania in a very basic (and cheap) small town theatre.
It was a fun diversion and some of the scenes were fascinating (the bull in particular) so I out it on my "when it comes down in price" list.
WEll, it's there. I got the Blu-Ray yesterday and we watched it and, holy sheets, the picture quality is excellent and the sound is to die for. It may wind up being my demo disc for a while.
PS - this is far better than the first Percy Jackson, movie - IMNSHO anyway. But, then again, being the second in a seies, there was not as much exposition to drag the story down.