Naomi Watts in the new Shut In poster EuropaCorp has released the new Shut In poster, which you can view in the gallery below. Shut In stars Naomi Watts, Oliver Platt, Charlie Heaton, David Cubitt, and Jacob Tremblay. RELATED: Naomi Watts and Jacob Tremblay in the Spooky Shut In Trailer Shut In is a heart-pounding thriller starring Naomi Watts as a widowed child psychologist who lives an isolated existence in rural New England.