Zack Hemsey is an American composer and music producer, best known for producing and composing music for film trailers. A notable piece was his work on "Trailer 3" of the 2010 movie Inception which included his composed piece "Mind Heist"; it is a common misconception that the piece for this trailer was composed by Hans Zimmer because Zimmer composed the official score for the movie itself. Hemsey has also worked on trailer scores for The Town and Ridley Scott's Robin Hood.Hemsey began his career as the composer for an obscure hip-hop group called Nine Leaves, where he was also one of five lyricists / MCs.He is currently an independent artist, self releasing his own studio albums, all of which tend to combine elements of film score, hip-hop, and world instrumentation.