Sharktopus is a 2010 SyFy original horror/science fiction film produced by Roger Corman, directed by Declan O'Brien, and starring Eric Roberts. Two official sequels called Sharktopus vs. Pteracuda, which was released on August 2, 2014, and Sharktopus vs. Whalewolf, which premiered on July 19, 2015. Another sequel titled Sharktopus vs. Mermantula, was announced in the credits, and would feature a man/piranha/tarantula hybrid.
Sharktopus

TV-141h 29m3.3

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A scientist sets out to stop a genetically engineered shark-octopus hybrid, designed for military purposes, as it wreaks destruction in Mexico.

Sharktopus vs. Pteracuda

TV-141h 24m3.5

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A genetically modified monster, Pteracuda, breaks free from its creator, a US scientist, and causes chaos, prompting the Sharktopus to intervene and maintain order.

Sharktopus vs. Whalewolf

TV-141h 23m3.2

Watch Sharktopus vs. Whalewolf

As a genetically modified sea monster, the Whalewolf wreaks havoc on the coast, prompting Sharktopus to take drastic measures to restore balance to the ocean.

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