Question: who play mary poppins in mary poppins returns
Answer: A sequel to the 1964 film Mary Poppins , the film stars Emily Blunt as Mary Poppins with Lin - Manuel Miranda , Ben Whishaw , Emily Mortimer , Pixie Davies , Joel Dawson , Nathanael Saleh , Julie Walters , Colin Firth , and Meryl Streep in supporting roles .