Star Wars Celebration is going down in London today, which will mean lots of little tidbits. Up first is Rogue One: A Star Wars Story. They showed a big behind-the-scenes clip package, which you're going to want to press play on ASAP.

Not included in that footage but shown earlier, this is the very first concept art ever created for Rogue One. The team has since changed, but you can see the misfit nature of the rebel group even at this hypothetical stage.

Next up is the first poster for Rogue One.

Here's Alan Tudyk's droid, K-2SO, who will, due to a data wipe performed by another character, have a very different personality from most droids we've seen in the Star Wars universe.

Here's this very excited alien guy firing out of the side of a ship.

They also showed a new trailer exclusively for the convention attendees. Our own Erik Davis was there. He'll be back with more later, but here's how he described it:

Rogue One: A Star Wars Story is in theaters December 16, 2016.