Princess and dragon hero is envisioned as slaying dragons even though, for instance, the Brothers Grimm had only a few tales of dragon and giant slayers among hundreds of tales. One of the earliest example of the motif comes from the Ancient Greek tale of Perseus, who rescued the princess Andromeda from Cetus, a sea monster often described as resembling a serpent or dragon. This was taken up into other Greek myths, such as Heracles, who rescued the princess Hesione of Troy from a similar sea monster. Most ancient versions depicted the dragon as the expression of a god's wrath: in Andromeda's case,
Monster from the Ocean Floor was sold to Lippert Pictures for $110,000. Gene Corman later said that Lippert renegotiated his deal on the film once he found out that Roger Corman had not spent $100,000 on making it, but considerably less. Corman received a $60,000 advance for "Monster", which enabled him to make his next film. The film grossed $850,000. "TV Guide" found the movie lacking and criticized the directing; however, it found the movie interesting historically as the "beginning of something big and cheap". Variety was kinder, calling the movie a well made quickie. Monster from the Ocean Floor Monster from the Ocean Floor