Japanese big-boat WWII drama "Yamato" surges with patriotism, sentiment and gore but is unlikely to hit many targets outside Nipponese waters. A combo of "Titanic" and "Pearl Harbor," blockbuster garnered strong local biz during the winter after a slow pre-Christmas launch. Centering on the wartime exploits of the largest naval vessel ever, yarn will appeal to military buffs and Asia completists, and the bloody finale, reminiscent of the opening reels of "Saving Private Ryan," is gruelingly impressive.