Unfortunately CGI's over use for spectacle does not make up the writers need for a decent script. What remains are all the usual cliches used in these types of films. Why use 10 Trebuchets, when you can have 100? Etc. Loyal and obedient to the death sons, grubby barbaric warlord traitors and demonic women abound. Shame this sort of nationalistic nonsense gets funding to the detriment of the great films that China can and has produced in the previous 100 years. It all looked wonderful, like a shiny Hollywood musical but I was bored 15 minutes in and gave up. I'm sure the original tale was far better. Learn Mandarin and read the original. Got be easier than watching this.
