We got our first look at Dunkirk with the “Announcement” trailer back in August, but now we have our first trailer with some meat on its bones. It has a neutral Trailer Shield rating, for those of you curious about spoilers. Last week we reported a rumor that a 5-minute prologue for Dunkirk would be screening in front of IMAX showings of Rogue One: A Star Wars Story. While there has been no official announcement yet, screenings in the UK have already taken place. You can head over to our Forums to learn more. Dunkirk swarms theaters July 21, 2017.