The "Showtime" marketing preview guide for the film "Earth to Echo" published in Summer 2014 is a promotional magazine in English focusing on the upcoming movie. It provides exclusive previews, interviews, and behind-the-scenes looks at the film, offering fans a sneak peek into the world of "Earth to Echo" before its release. With a focus on creating excitement and anticipation for the movie, this marketing preview guide serves as a valuable collectible for fans of the film.