VIDEO : Johnson Dishes On Disney?s Star Wars? Spoilers Process

The most recent Star Wars: The Last Jedi trailer was very informative.
If fans theorize hard enough, they can even make out the plot.
So, how do director Rian Johnson and his team decide which details to reveal when?
In a chat with Yahoo, Johnson detailed a meeting he and his producer Ram Bergman had with with Lucasfilms.
Johnson said he sat down with Lucasfilms and "said, ?OK, this is what we?re going to reveal here and there.