The Tournament. Posting this because of the lovely Kelly Hu, and an old film favorite of mine, Robert Carlise. Anyone remember Begbie from Train Spotting?

Synopsis from IMDB.

Every ten years in an unsuspecting town, The Tournament takes place. A battle royale between 40 of the world’s deadliest assassins. The last man standing receiving the $10,000,000 cash prize and the title of Worlds No1, which itself carries the legendary million dollar a bullet price tag. All fights are monitored 24hrs a day on redirected CCTV cameras
and broadcast secretly to a ring of high stake billionaire gamblers. A gritty, multistranded action-thriller, The Tournament brings together international killers from every imaginable discipline in a blood-bathed contest to the death. We follow the competition favourites through stories of love, betrayal, revenge and redemption as they finally discover the true value of life.