Prada’s much-hyped Transformer project is one step closer to making its mark on Seoul. Prada said Monday that Eunmin S&D, the project’s contractor, has completed the structural work and the first rotation test of the building, which will morph its shape to accommodate a film festival, a contemporary art exhibition and other events over the coming months. The building’s moveable geometric components are covered with an elastic, white membrane normally used to cover and store machinery like old airplanes.  Miuccia Prada and Rem Koolhaas, who designed the structure, will host a cocktail April 23 to fete the Transformer’s inaugural exhibit- a reprise of the traveling exhibit “Waist Down-Skirts by Miuccia Prada”.