In Tsai Ming-liang’s minimalist film, the Fu-Ho Grand, a movie palace in Taipei, is closing its doors. Its valedictory screening, King Hu’s 1967 wuxia epic “Dragon Inn”, plays to a motley smattering of spectators, including two stars of Hu’s original opus, Miao Tien and Shih Chun, who watch their younger selves with tears in their eyes.