Johnny Flynn’s career has taken him from Regency England (“Emma,” “Vanity Fair”) to WWII (“Operation Mincemeat”) to contempo Glasgow (“Lovesick”) to mid-century Italy (“Ripley”) to 1971 David Bowie (“Stardust”), and now the versatile actor-singer-songwriter travels to post Civil War America in “A Prayer for the Dying.” Adapted from the novel by Stewart O’Nan and directed […]