Jackson prepares to farewell Middle-earth
Peter Jackson is putting together an early cut of his final Hobbit film and one of its stars, Richard Armitage, says there is "a sense of nostalgia".

The end is nigh for Sir Peter Jackson and his hobbits, dwarves and elves.

After 13 years, multiple Oscars and billions in box office, the Kiwi filmmaker will screen an early cut of The Hobbit: There And Back Again to Warner Bros executives next week in New Zealand.

The film, scheduled for release in December, is the sixth and final movie based on author JRR Tolkien's fantasy books.

"We are done with filming and they have a bit of motion capture left to do and I have a lot of post-production voice-synching," English actor Richard Armitage, one of the stars of The Hobbit trilogy, told NZ Newswire in Las Vegas on Thursday.

Warner Bros showed a sneak peek of The Hobbit: There And Back Again at the CinemaCon convention in Las Vegas.

Jackson's first foray into Tolkien's Middle-earth came with 2001's Lord Of The Rings: The Fellowship Of The Ring.

Armitage said it was an emotional time as the director's six-film marathon comes to an end.

"I think there is going to be a huge amount of sorrow and nostalgia going on in Peter Jackson's mind because he has lived in Middle-earth for what, 13 years," said Armitage, who plays the dwarf king, Thorin.

"There's a sense of nostalgia."

Armitage, 42, had a busy day in Las Vegas. He also showed the CinemaCon crowd a preview of his new tornado disaster film, Into the Storm.