I absolutely love Tony Jaa's movies. His movies are the only martial arts movies I'll watch.
But this movie sucks. I love Ong Bak 2, but 3 is so damn BORING.
Instead of taking the route of the second film, they focus more on supernatural aspects and more on good vs evil, rather than a story of vengeance. Half the time I was watching I was asking myself "what the hell is going on" because the subject matter is so distant from that of the first two films.
85% of the movie Jaa is crippled or recovering from being dead, so there's less fighting and more whining and tantrums about being crippled. The only decent display of action from Jaa is approximately 10 minutes before the end of the movie, and it's still not his best performance.
I would expect any Tony Jaa fan to watch this and form their own opinion. This is simply my opinion, and damn was I disappointed.