New Line Cinema’s third annual Scarediego horror event kicked off San Diego Comic-Con last night with a terrifying new trailer and three clips from the highly anticipated It Chapter Two.

Set 27 years after the adolescent Losers Club banished evil clown Pennywise from their hometown of Derry, the grown-up Losers have returned to honour the pact they made should It ever return.

Director Andy Muschietti and the primary cast – James McAvoy (Bill), Jessica Chastain (Beverly), Bill Hader (Richie), Jay Ryan (Ben), James Ransone (Eddie), Andy Bean (Stan) and Isaiah Mustafa (Mike) – took to the stage for a panel moderated by Conan O’Brien, sharing behind-the-scenes anecdotes and discussing the themes of childhood trauma and survival guilt that are addressed in the film.

“There’s a lot of emotion,” said Hader. “It really is about childhood trauma… but it also has a beautiful story.”

It Chapter Two is going to be bloody, with a reported 4,500 gallons of the fake stuff used, most of which ends up on Jessica Chastain who, as a fan of Stephen King’s Carrie, prompted Muschietti to “do Carrie on steroids”.

The three exclusive clips screened for the pumped up audience suggest that the sequel’s scare factor will top the first film. One particularly harrowing sequence is set in a carnival funhouse (with an evil clown, of course) where Bill is attempting to save a child from the clutches of Pennywise in order to assuage the guilt of losing his brother, Georgie. If the rest of the film matches the sheer intensity of this scene (which isn’t in the book), Chapter Two could dethrone the first movie as the highest grossing horror film to date.

“With all the problems in Derry and they open a funhouse,” quipped Hader.

We also got a look the adult Losers reunion at the local Chinese restaurant – an iconic scene in the novel – and the final clip featured a return to the infamous house on Neibolt Street and an unexpected nod to John Carpenter’s The Thing, which Hader called a “total nerd shout-out”.

Witness “the end of It” when Chapter Two opens in cinemas on September 5.

Check out all the latest from SDCC 2019 here.