The first full trailer for the live action Ghost in the Shell Movie is out, and it looks pretty good. I am not sure how faithful they are going to be to the source material, but they certainly nailed the visuals.
The Ghost in the Shell universe is pretty large, which can make getting into it a bit intimidating for newcomers. Here is a video to help you make sense of the franchise. If you are looking for a simple recommendation on how to get started, I would suggest first viewing the original 1995 movie as an introduction, then moving into the 2002 TV series Stand Alone Complex. Both are separate though, and could be viewed in the opposite order.