The title in a story is like a person’s face: often the first thing you notice, and the first thing that either catches your attention or leaves you cold.
A title that doesn’t fit can burden a book or a film with the expectations it raises. It can also carry it an extra mile. Ask Steven Soderbergh and his Sex, Lies and Videotape (which of course started the 90s trend of trifecta titles, as in «This thing, That thing and also that other thing«).