One of the truest forms of horror Hollywood ever depicts is the story of mankind abandoned, disoriented or forgotten. Whether it’s a film about being lost at sea like Robert Zemeckis’ “Cast Away” or one about being so miniscule that your spouse believes you’ve been eaten by the family cat — as was the case in the 1957 sci-fi film “The Incredible Shrinking Man,” — movies about isolation force viewers to confront some of their worst fears.