Languages created for fiction

For a verisimilitude that goes beyond the boundaries in movies, books or series, a lot of efforts a put into developing the right scripts that include from the most exact set (if we are talking about historic based productions) and in this case, the proper language. This is what we want to take as our focus, the development of fictional languages on literature, movies and series paying special attention to the social, cultural and political aspects that are built around those languages. As examples of these languages created for fiction are Alienese (from Futurama); Dothraki ( Game of Thrones/A Song of Ice and Fire); Klingon (Star Trek) ; Elvish: (The works of J.R.R. Tolkien).