Godzilla vs Hedorah (also known as Godzilla vs the Smog Monster, and Gojira Tai Hedora in the original Japanese) is a 1971 film. Part of the Toho studio's Godzilla series, it was directed by Yoshimitsu Banno with special effects by Teruyoshi Nakano .

Hedorah was an alien lifeform that landed on Earth and began feeding on pollution. Thanks to his toxic nature, as well as his acidic, poisonous body, Hedorah very nearly put an end to Godzilla in their struggle. Godzilla finally put an end to Hedorah by completely drying him out. The movie contains several strange impressionistic animated scenes portraying the smog monster at his evil work.

On a side note, this was the first time we see Godzilla fly. He uses his atomic breath as jet propulsion.

Producer's reaction to the film

Tomoyuki Tanaka , who produced the first 22 Godzilla films was in the hospital while the film was made. Upon recovery and actually seeing the film, it is said that he told the director of the film that he ruined the Godzilla series and that he would never direct at Toho ever again.