This movie is a contemporary take on the classic Chinese novel "Journey to the West," which is a fictionalized account of the legends around the Buddhist monk Xuánzàng's pilgrimage to India during the Táng dynasty in order to obtain Buddhist religious texts called sutras.
The ministers have imprisoned the writer of the book, and are attempting to destroy it to reverse time back to traditional Chinese life, i.e. before any modernization. The modern world will be destroyed unless The Scholar From Above (Thomas Gibson) can enter the underworld and save it.
Don't make any mistake. Gibson would not have taken one step except for the fact that he was following the luscious Bai Ling, who anyone would follow to the gates of Hell.
He rescues Sun Wukong the Monkey King (Russell Wong - Romeo Must Die), and is joined by Zhu Bajie(Pigsy)(Eddie Marsan - 21 Grams, Vera Drake) and Sha Wujing (Friar Sand) (Kabir Bedi - Octopussy) to save the book and save the world. It is almost a Wizard of Oz adventure, as they all have personal issues to resolve in addition to the mission.
Of course, Kuan Yin (Bai Ling) appears any time he utters a prayer. Thankfully, for the many appearance of Bai Ling make this film worth watching. She is usually in another spectacular costume each time she appears.
Besides spectacular costumes, the sets were lavishly decorated. The special effects were magnificent, and the martial arts displays exciting.
It was overly long, but most great adventures are. Anyway. that is more time to watch Bai Ling.