Here is the first official trailer for Rogue One: A Star Wars Story which will be released this December. You can get them at the Rogue One: A Star Wars Story page. For those of you who are not aware, Rogue One is the first anthology film outside of the official trilogies. Rogue One is set before Episode IV and tells the story about a band of rebels who attempt to steal the plans to the DEATH STAR. We can assume they were ultimately successful, and those were the plans that ended up in R2-D2 in Episode IV. Rogue One is directed by Gareth Edwards, who most recently directed Godzilla (2014).