Universal Pictures has released 10 new photos from Mama, director Andres Muschietti's gripping thriller that will make you think twice about adopting. A raven-haired Jessica Chastain and Nikolaj Coster-Waldau star as Annabel and Lucas, who take in Lucas' young nieces (Megan Charpentier and Isabelle Nélisse) who were living in the woods by themselves for five years. When the youngsters come to live with this happy couple, they bring with them a dark secret that will tear this family apart. Take a look at these photos from this intense thrill ride, which includes behind-the-scenes shots with producer Guillermo del Toro.