Listen to the sound clip Expendables 3 from Trailer Soundboard: Expendables 3 Expendables 3 This sound is from Trailer Soundboard A movie trailer is a preview or advertisement for an upcoming film, typically shown in theaters before the feature presentation and on television and online. See also: Movie posters, movie ads, movie commercials, movie teasers and film trailers. Go to the full soundboardwith more sound clips Search