Once a maker of Hollywood-style sci-fi ("Gunhed," 1989) and noir ("Painted Desert," 1993), Masato Harada has become a director of films about fact-based, character-testing group missions, be it police routing radicals from a Karuizawa villa ("The Choice of Hercules," 2002) or samurai fighting the biggest battle in Japanese history ("Sekigahara," 2017).