Kamurai
Good watch, might watch again, but can't recommend unless you're just a Percy Jackson fan.
This movie definitely had a good budget: production quality is high, enough recognizable side characters that clearly have hefty paychecks (well, heftier than the kids), so much quality cg work that was either unnecessary because it was pointless or overly complicated.
I understand that this is from a series of books, but it really felt like they lean really heavy on the idea that Percy Jackson was a "one quest wonder" to the point where it feels like we're watching a b plot with Jackson and Clarisse is the actual a plot. Even the end of the movie contributes to the concept.
Bringing Leven Rambin (Sarah Connor Chronicles) on as Clarisse is ...