Helen Mirren and Gillian Anderson headline the upcoming coming-of-age film White Bird: A Wonder Story – and People has an exclusive first look at the moving trailer. The drama is based on the best-selling book of the same name by Wonder author R. J. Palacio, which was adapted into a 2017 film starring Julia Roberts and Owen Wilson, and sparked a movement to “choose kind.” White Bird, the inspirational next chapter, follows Julian (Bryce Gheisar), who has struggled to belong ever since he was expelled from his former school for his treatment of Auggie Pullman. To help transform Julian’s life, the boy’s grandmother (Helen Mirren) tells him of her own story of courage – as a child in Nazi-occupied France, a boy sheltered her from danger. White Bird: A Wonder Story, with a screenplay by Mark Bomback, opens in theaters October 14. A first set of production stills have been added to the photo gallery.