The first teaser trailer for "Star Wars: The Last Jedi" debuted at Star Wars Celebration today, and it offers a tantalizing glimpse at the eighth episode in the iconic franchise.

The trailer opens with Rey (Oscar Isaac) running through a hallway with BB-8 at his side. And there are some thrilling space battles.

And at the end, a clearly wizened Luke growls, "I only know one truth. It's time for the Jedi to end."That's a surprise since many fans expected Luke to serve as a mentor to Rey in training in the ways of the Force, much like Yoda did for him. But he seems to be advocating for the extinction of Jedi!

"Star Wars: The Last Jedi" opens in theaters December 17.

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