The Project: IT Chapter 2 stars James McAvoy, Bill Hader attempt 'horrifying' Kiwi accents

The conclusion to the highest-grossing horror film of all time is here - and the stars of IT Chapter Two definitely brought the horror with their attempts at a Kiwi accent.

Based on the 1986 novel by Stephen King, IT Chapter Two is set 27 years on from the Losers Club's first defeat of Pennywise the clown. But now, he's back - once again terrorising the town of Derry. 

All grown up, the Losers have long gone their separate ways. But when kids start disappearing again, they reunite to bring down the deadly clown - once and for all.

The Project had a chat with two of the Losers, Bill Hader and James McAvoy, who worked alongside Kiwi actor Jay Ryan on the sequel.

McAvoy was confused that Ryan's Kiwi accent was "not there" during filming.

"He had to stay with an American accent the whole time," said Hader.

"I didn't hear his actual accent until CinemaCon, when he came up to me and said, 'hey, mate'."

Ryan allegedly told McAvoy that he does a "fairly decent" New Zealand accent - he was lying.

"James McAvoy sounded like a Kiwi from the North Shore, slightly South African," co-host Kanoa Lloyd observed.

To Hader, the Kiwi accent is simply encapsulated by the words, "Meta Meta" - watch the video above to find out why.

IT Chapter Two is in cinemas now.