Millicent "Millie" Simmonds plays Rose. In real life, the 14-year-old actress is deaf. Historically, very few deaf actors have appeared in big-budget movies. Wonderstruck has an unprecedented number of deaf actors in one film.
There are seven deaf actors, including Millie. To communicate on set, Millie worked with an interpreter. The crew filmed in 2016 at the American Museum of Natural History. It's located in New York City. They worked at night. That's so people could still visit the museum during the day.
Rose's story helps explain some of the challenges that the deaf community faced in the 1920s. They face similar challenges today. Back then, parents of deaf children were discouraged from learning sign language. That was the case with Rose's father. He wanted Rose to talk instead of sign.
Millie experienced something similar with her own father. "A lot of parents are still being told not to learn sign language for their deaf kids," she says. "This needs to change."