This 2009 film by the Friese Brothers is adapted from the 1909 science fiction short story by E.M. Forster. It was satirized by Harvey Kurtzman and Wally Wood as "Blobs!" in the first issue of Mad (October-November, 1952). Go here to read "Blobs!" Possibly Kurtzman had encountered the story in Collected Short Stories of E.M. Forster, published in 1948.