This is a trailer for the live action movie version of Fullmetal Alchemist.
It is a popular Japanese Manga series that was written and illustrated by Hiromu Arakawa, running from 2001-2010. Its popularity spawned an anime television series, two animated films, a card game, video games, and other collectibles. Arakawa wrote the script for the live action adaptation, with Fumihiko Sori (Ichi) directing. It is scheduled to be released in Japan in December 2017. Check out the synopsis and trailer below.
"Two alchemist brothers go on a quest for the Philosopher's Stone after an attempt to revive their dead mother goes horribly wrong."