Mattel has announced plans to develop Polly Pocket, Mattel’s micro-doll line, into a live-action motion picture. Mattel Films is working with Metro Goldwyn Mayer (MGM), Lena Dunham’s production company, Good Thing Going and Lily Collins on the project. Dunham will also write and direct the family comedy with Collins starring in the lead role as Polly. The film follows 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,” says Dunham. “I'm so thrilled to bring to bear both my love of this historic property and also my deep-seated belief that young women need smart playful films that speak to them without condescension.”

“I’m so excited to partner with this inspiring powerhouse of a team,” says Collins. “Developing this project with Robbie, Lena, Mattel and MGM to reintroduce Polly in a fun, modern way has been such a treat. As a child who was obsessed with Polly Pocket, this is a real dream come true, and I can’t wait to bring these tiny toys to the big screen.”

Robbie Brenner and Kevin McKeon will lead the project for Mattel Films. Sandino Moya-Smith and Winnie Carrillo will lead for MGM. Good Thing Going’s Liz Watson and Michael P. Cohen will serve as executive producers.

“Polly Pocket is an iconic franchise that has resonated with children for more than three decades,” says Robbie Brenner, executive producer, Mattel Films. “The incredible nostalgia that Polly evokes, coupled with Lena’s fresh approach and Lily’s take on the character, will introduce an entirely new interpretation of this classic brand to audiences. We look forward to working with MGM to produce a feature film that will appeal to the whole family.”

“We look forward to working with our partners at Mattel Films to help bring Lena and Lily’s vision for a Polly Pocket movie to audiences the world over,” Michael De Luca, film group chairman and Pamela Abdy, film group president, MGM said in a joint statement.

Polly Pocket joins other Mattel Films projects in development including movies based on American Girl, Barbie, Barney, Hot Wheels, Magic 8 Ball, Major Matt Mason, Masters of the Universe, Rock ‘Em Sock ‘Em Robots, Thomas & Friends, UNO, View Master and Wishbone.