A new trailer for IT: Welcome to Derry series has been released. Warner Bros. Television’s IT: Welcome to Derry will debut on HBO next month. Check out the IT: Welcome to Derry trailer below (watch more trailers and clips):You can also check out some new posters for the show here:Photo Credit: HBOPhoto Credit: HBOWhat happens in the IT: Welcome to Derry trailer? Produced by HBO and Warner Bros. Television, IT: Welcome to Derry is developed by Andy Muschietti, Barbara Muschietti, and Jason Fuchs. Andy Muschietti, Barbara Muschietti, Fuchs, and Kane also all serve as executive producers alongside David Coatsworth, Shelley Meals, Roy Lee, and Dan Lin.