It begins with the violins — orderly and baroque. The choir rises. The audience rises. And before you know it, the concert hall, church, rec center or school auditorium fills with the triumphant sound ...

“Hallelujah: Leonard Cohen, a Journey, a Song” is a documentary about the Leonard Cohen song “Hallelujah,” and if that sounds like a lot of movie to devote to one song — well, “Hallelujah” is a lot of ...