"It Chapter One" is a horror film released in 2017, directed by Andy Muschietti. It is based on the novel by Stephen King and follows a group of children in the town of Derry, Maine who are terrorized by a shape-shifting entity known as Pennywise the Clown. The story takes place in the 1980s and explores themes of friendship, fear, and childhood trauma as the group, known as the Losers' Club, confronts their deepest fears. The film alternates between the children's experiences and flashbacks to their encounters with Pennywise. As they band together to face the malevolent force, they uncover the dark history of Derry and the mysterious disappearances of children. "It Chapter One" received positive reviews for its performances, particularly that of Bill Skarsgård as Pennywise, and was praised for its blend of horror and coming-of-age elements.