Just how far in advance is this overarching Star Wars saga planned out? Episode VIIIThe Last Jedi, is in post-production now and headed to theaters this winter. Episode IX is in development, building off the events of that film. So how much of Episode VIII was set in stone (and when) to give Episode IX enough time to be fully developed and fleshed out? And is that movie setting the stage for an Episode X, and so on and so forth? These are the questions a man thinks to himself when he writes on the interwebs all day.

Complicating matters further is the fact that different dudes are directing these various Star Wars. Rian Johnson is making The Last Jedi but Jurassic World’s Colin Trevorrow is the one responsible for Episode IX. So how do you ensure that the two movies fit perfectly together?

From time to time, it seems future directors need to ask the current ones for a small assist. Rian Johnson supposedly asked J.J. Abrams to make a small tweak to The Force Awakens, and on the MTV podcast Happy Sad Confused, Trevorrow revealed that he asked Johnson to shoot something that would pay off in Episode IX.

There was one little thing. It wasn’t an adjustment, it was ‘Could you shoot this one extra thing while you’re in this place on this day?’ And he did, which was great.

My exclusive sources tell me that “one little thing” was the Book of Henry. It’s sitting on the bookshelf in the Millennium Falcon.

Okay, that was not Trevorrow’s request. But it should have been. Trevorrow went on to note that the world of Star Wars is not ruled by a “great corporate overlord,” but rather it is really “a small group of people ... none of them corporate” who are guiding this galaxy into the future. The obvious follow-up question is whether Kathleen Kennedy or anyone else has asked Trevorrow to put something into Episode IX specifically to pay off down the road. But maybe we’ll learn that answer at a later date.

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