It Came from Beneath the Sea (1955)
I know, this is pushing it. Ray Harryhausen's star monster in It Came from Beneath the Sea was a giant tentacled beast. This anemone is a different phylum from the star of It Came from Beneath the Sea but, hey, its marine and its go lots of tentacles...
Photo: sea anemone, St. Abb's Marine Station, St. Abb's, Scottish Borders, Scotland.
Location: St. Abb's Marine Station, St. Abb's, Scottish Borders, Scotland, UK.
Photographer: Jason Gilchrist