Taylor Swift is heard before she is seen. Then the drop hits: an abridged performance of “Miss Americana & the Heartbreak Prince” into “Cruel Summer,” a track that TikTok breathed new life into four years after its initial release on her 2019 album “Lover.” This is the moment it should become clear: “Taylor Swift: The Eras Tour” film is a near exact replica of her blockbuster concert performance, which recaps all 10 of her studio albums across 17 years of recorded work.