that would be a rather interesting theme for an Alien trailer.
Not sure if i'm bummed down that if it was this one, that it now isn't. As interesting as I think it would be,
i think it would be a wrong approach for the movie to add this sound to a trailer.
however, if it would be a cover like this one - despite it not being as good as Johnny Cash, i really dig the vibe.
Ain't No Grave by Johnny Cash cover by Ben Moody