The Watcher in the Water is a fictional creature in J. R. R. Tolkien's Middle-earth; it appears in The Fellowship of the Ring, the first volume of The Lord of the Rings. Lurking in a lake beneath the western walls of the dwarf-realm Moria, it is said to have appeared after the damming of the river Sirannon, and its presence was first recorded by Balin's dwarf company 30 or so years before the beginning of The Fellowship of the Ring.

The Lord of the Rings: The Fellowship of the Ring is a 2001 epic fantasy adventure film directed by Peter Jackson from a screenplay by Fran Walsh, Philippa Boyens, and Jackson, based on 1954's The Fellowship of the Ring, the first volume of the novel The Lord of the Rings by J. R. R. Tolkien. The film is the first installment in The Lord of the Rings trilogy. It features an ensemble cast including Elijah Wood, Ian McKellen, Liv Tyler, Viggo Mortensen, Sean Astin, Cate Blanchett, John Rhys-Davies, Billy Boyd, Dominic Monaghan, Orlando Bloom, Christopher Lee, Hugo Weaving, Sean Bean, Ian Holm, and Andy Serkis.