I have always been a sucker for martial arts movies. And the movie, The Forbidden Kingdom, comes as a nice watch. Even though not at the league of, Enter The Dragon, it does have good entertainment value.
The story is pretty straightforward, of a Traveler moving between from Earth's dimension to one where the lore of Monkey King exists.
Monkey King had been trapped as a stone statue due to deceit of the Jade warlord, and the only way it can be reversed is when the prophecy of the traveler returning his staff is fulfilled.
The cast has Jakie Chan and Jet Li as the Drunk Immortal and the Silent Monk, with the others filling into their roles nicely.
This falls under the 'must watch once' category, and is also worth getting the DVD for your collection - so you can watch it again on occasions.