“The Kingdom” is the third film in Kanai Katsu’s avant-garde Smiling Milky Way Trilogy which began with two politically loaded films, 1968’s “The Deserted Archipelago”, a dream journey through the the post-ANPO Treaty 60’s, and 1971’s “Good-Bye”, an exploratrion of the plight of the zainichi, or Japanese of Korean heritage. “The Kingdom” doesn’t take on any loaded current event...