I really can't get too excited by viewing the trailor. But at the same time there are more positives about it for me that will make me see this movie:

Having Michael Mann as the director will at least guarentee us an action packed movie with a good soundtrack.

I really like Johnny Depp and think that he may be one of the most underated versatile actors out there. I always enjoy the roles that he plays and his movies in general.

Any story that has characters like John Dillinger, Pretty Boy Floyd, Alvin Carpis, etc. has to be somewhat good.

I'll definitely be seeing this movie.