The 2013 horror movie Mama tells the unsettling story of two young sisters who are found in a feral state years after disappearing into the woods. When their uncle and his girlfriend take them in, the family discovers that the girls were not alone during their five years of isolation. A sinister, supernatural entity the children call "Mama" followed them from the cabin to their new home and begins to terrorize the family, unwilling to give up her surrogate children.  This film features a powerful performance by Jessica Chastain, showcasing the incredible depth of her talent as an actress.