This article focuses on the musical dimension of experimentation in the creative space of science fiction film, concerning its uncanny, new and fantastic places, and otherworldly encounters within fictional, but possible worlds. The aim is to consider the function and potential of the audible – to examine how sound is used in the filmic exploration of the boundaries between the human and the alien (the unknown). More particularly, we are interested in the role that human voice-like and human vocal sounds can play in this divide, as we believe manipulations with such audible qualities contribute greatly to the emotional dimension of cinematic stories of otherworldly encounters. For that purpose, we concentrate on Denis Villeneuve’s