Godzilla vs. Biollante
Although the previously filmed "Godzilla vs. Biollante" had been the most expensive "Godzilla" film produced at the time, its low audience attendance and loss of revenue convinced executive producer and "Godzilla" series creator Tomoyuki Tanaka to revitalize the series by bringing back iconic monsters from pre-1984 "Godzilla" movies, specifically Godzilla's archenemy King Ghidorah.