Claim: War of the Worlds is based on a science fiction novel.
Evidence: War of the Worlds is a 2005 American science fiction disaster film directed by Steven Spielberg and written by Josh Friedman and David Koepp , loosely based on the novel of the same title by H. G. Wells.
The War of the Worlds is a science fiction novel by English author H. G. Wells first serialised in 1897 in the UK by Pearson 's Magazine and in the US by Cosmopolitan magazine.