HBO has released another trailer for its new Harry Potter TV series, giving fans a much bigger look at the new Hogwarts and the young cast. Newcomer Dominic McLaughlin plays Harry, with Alastair Stout as Ron and Arabella Stanton as Hermione. The trailer follows the three arriving at Hogwarts, getting sorted into Gryffindor and meeting familiar faces including Dumbledore, Snape, McGonagall and Hagrid. Harry also gets his first taste of Quidditch, magical classes and the Invisibility Cloak. The story centers on Harry, Ron and Hermione investigating the mystery of the Philosopher’s Stone and includes several iconic moments from the first book, including the mountain troll, the giant chess match and the Mirror of Erised. HBO plans to adapt all seven J.K. Rowling books across seven seasons. The first season will have eight episodes covering The Sorcerer’s Stone and is scheduled to premiere at Christmas. A second season, based on The Chamber of Secrets, has already been ordered.