Godzilla vs. Hedorah is a 1971 Japanese kaiju film directed and co-written by Yoshimitsu Banno, with special effects by Teruyoshi Nakano. Produced and distributed by Toho Co., Ltd., it is the 11th film in the Godzilla franchise and Banno's directorial debut. The ensemble cast includes Akira Yamauchi, Toshio Shiba, Hiroyuki Kawase, Keiko Mari, and Toshie Kimura, with Haruo Nakajima as Godzilla and Kenpachiro Satsuma as Hedorah. The film features an environmentalist message as symbolized by Hedorah being spawned from pollution. It was released in the United States as Godzilla vs. the Smog Monster.