Macy’s and DreamWorks invites customers to #gethappy with Trolls-inspired products this fall   NEW YORK, 2016-Sep-20 — /EPR Retail News/ — This fall, Macy’s stores nationwide will be the center of happiness, as the retailer invites customers to #gethappy through a multifaceted entertainment collaboration with DreamWorks Animation, celebrating the upcoming animated feature film Trolls. Before debuting in U.S.…