I've been seeing a lot of comments on youtube saying that a composer named "Mike Zarin" scored the music and I'm wondering if he is just the guy who did the scoring for the trailer(s) or is there a co-composership between him and Hans Zimmer?

I remember an episode of the Nolan Fans podcast where they mentioned the soundtrack for the second inception trailer and whether of not it would appear in the final film.

Just something to think about. has anyone else noticed this as well?

Its "Mind Heist" from Zack Hemsey.