Manori Ravindran International EditorA new Venice-bound documentary on singer Leonard Cohen will be shopped internationally by doc specialists Dogwoof.Dan Geller and Dayna Goldfine’s latest feature “Hallelujah: Leonard Cohen, A Journey, A Song” is executive produced by Oscar winner Morgan Neville and Jonathan Dana, a long-time collaborator of directors Geller and Goldfine (“The Galapagos Affair: Satan Came to Eden”).