How do you recreate the setting of one of the most infamous bank robberies of the past half-century, one that lived on not only in counterculture lore, but also on celluloid in a classic film? For David Korins, the scenic designer of the Broadway adaptation of “Dog Day Afternoon,” the answer arrived heavy, and on a pivot. The show opens on the nondescript brick-walled exterior of the bank, a solid, seemingly immovable set for which Korins earned his fifth Tony nomination. But on cue, all 27,000