Meryl Streep is…. Cat Woman? Meryl Streep will star in Dewey, a fact-based film about a stray cat’s impact on the town of Spencer, Iowa. The project has landed at New Line Cinema. Streep is attached to star in the adaptation of the Vicki Myron book “Dewey: The Small-Town Library Cat Who Touched the World.” The Mamma Mia star play the author, who works at the library and observed the impact that a kitten had on the townsfolk once it became the library mascot after wandering in through the after-hours book return slot on a cold night.