Mamoru Oshii is an internationally renowned animation filmmaker. Division of his filmography into three periods reveals that he has kept some psychological themes. The first period began with making fan-oriented animation series based on the manga Uruseiyatsura. However, Oshii soon turned into bring all his tastes to the fore; in Uruseiyatsura 2 the Beautiful Dreamer (1984), he indicates that the world of dream is more important that the real world, and In The Egg of an Angel (1985) and Twilight Q Vol.2 The Mysterious Thing File 538 (1987), the relationship between a woman and a man echoes the director’s personal life. During the second, Oshii directed live-action films which he had aimed at since his youth; in Red Glasses (1987) and Stray Dog: Kerberos Panzer Cops (1991), he depicts the life of a revolutionary warrior who on the run is left behind the new age. Turning into reality his long-cherished dream of live-action filmmaking, these films reverberate Oshii’s background as a late participant of past student activist movements. The third period saw his animation filmmaking change for entertainment; Patlabor the Movie (1989), Patlabor 2 the Movie (1993), Ghost in the Shell (1995). Audiences were fascinated with these films in which the breaking of suspense serves to dispel social unrest. At first seeking a dream-like, autistic world, Oshii succeeded in presenting entertainments to the world after getting over a midlife crisis by fulfilling a dream in his youth.