Mortal Kombat” video-game franchise offered a legion of characters for the filmmakers behind the new movie adaptation to choose from. “Mortal Kombat” uses only a small fraction of the game’s super-powered ninjas, brutal assassins and four-armed monsters, but even that was probably enough to tax the celebrity trailer supply in Australia, where the film was shot. In this reboot of the movie franchise that has been dormant since 1997’s “Mortal Kombat: Annihilation,” an MMA fighter (Lewis Tan)