If you’re big into movies, TV or other media, you already know that more and more shows and productions are getting short movies to advertise them, “trailers” that you can now even find for books and video games (though you’re not likely to see those in a movie theater). I write a film blog too, so I pay close attention to trailers for upcoming movies, which is why the Apple iPhone app TrailerSpy Mobile [iTunes link] caught my interest. Here’s what I found…