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Whether you made it to one of Taylor Swift's 85 shows during her 1989 world tour or not, we all spent a good portion of 2015 talking about it, awing over the never-ending list of celebrity guests and wondering how in the world she pulled off such a tremendous feat.
Well, thanks to her just-released 1989 documentary—which dropped on Apple Music Sunday morning—we get a little glimpse behind-the-scenes of her incredibly successful show and the things that went into planning it.
The two-hour film directed by Jonas Akerlund (who also worked on Jay-Z and Beyoncé's On the Run Tour film) documents her Nov. 28 show in Sydney, Australia at the AZN Stadium, but also answers so many of our burning questions.
Here are five things we learned: