Is the cause of Wings something that really needs to be … evangelized? Apparently so. When “Man on the Run,” a documentary about Paul McCartney ’s 1970s Wings period, had its world premiere at the Telluride Film Festival over the weekend, you could hear patrons talking about what a revelation it was that he generated so much good music in the wake of the Beatles ’ breakup, as if he hadn’t remained one of the biggest artists in the world throughout the subsequent decade. So maybe there’s some desire for further vindication that has driven McCartney to write a book about those years (coming out in the fall) as well as executive produce this Morgan Neville -directed doc (hitting select theaters and then Prime Video next year).

Maybe everyone who sold McCartney’s post-Beatles period s

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