So far the movie went through a three-month shooting schedule. The schedule came to an end on August 26, 2016.
The official website for the movie announced that the release date for the Live-Action movie will be December 2017 in Japan and they also announced that the actual costume of Roy Mustang will be displayed for the first time at the Tokyo Comic Convention 2016 event to be held at Makuhari Messe in Chiba Prefecture this weekend. You can check his costume at the booth of Warner Brothers Japan, but his iconic white gloves will not be included in the display for reasons not explained to the public yet.
Below you will find the trailer for the live-action Fullmetal Alchemist film which was revealed earlier a couple of weeks ago: