Micro-doll Polly Pocket is getting amplified for the big screen in a new live-action Mattel and MGM movie which Golden Globe Girls winner Lena Dunham will write and direct with Lily Collins to star as the title character.Dunham’s production company Good Thing Going will also produce the movie about a young girl and a pocket-sized woman who form a friendship.“Polly Pocket was responsible for countless hours of childhood escapism for me – Polly gave me a tiny world of magic and autonomy to narrate, so it’s pretty poetic to be tackling these same ideas now as a director collaborating with the brilliant Lily Collins, Robbie Brenner, Mattel and MGM.