This might have done better for me if Lucrecia Martel had just stuck to putting together a series of authentic and potent folk performances from an array of people whom we meet, initially, sitting around a camp fire in the middle of lockdown. I didn't really need to hear Julieta Laso's rather chronological and self-indulgent in-car monologue. Back to the thrust of this documentary, though, and the acoustics - especially in the jungle, give the songs a joy and a potency and you get a real sense not just of tradition, but of aspiration from the (admittedly subtitled) lyric for women who yearn…