Angelique Jackson Amazon MGM Studios is in final negotiations to acquire Megan Park’s sophomore feature “My Old Ass,” starring Aubrey Plaza and Maisy Stella, following its Sundance Film Festival debut. The high-concept film — which was produced by LuckyChap’s Margot Robbie, Tom Ackerley and Josey McNamara, with Indian Paintbrush’s Steven Rales — made its world premiere on Saturday night in a sold-out screening at the Eccles Theatre in Park City, UT. The deal is for roughly $15 million.