Emily Blunt and James Corden can’t lead ‘The English’ and ‘Mammals’ out of the woods

It’s a streaming jungle out there, which might explain why Amazon offers up a couple of odd series featuring the stars of “Into the Woods” this weekend: “Mammals,” in which James Corden prepares for life beyond latenight, and “The English,” with Emily Blunt, which gives a lot of prestige British actors the chance to play cowboy.