'I'm sure they picked it because of the beautiful scenery,'' he said. ''The waterfall is not Niagara, but it's a pretty spot.''

The movie, which began shooting in March in Greenland, has been through the area several times. In April, crews shot a scene at the century-old Pagoda in Reading, where the 12-year-old hero finds his homeland destroyed by war. The Japanese-style structure on Mount Penn will be digitally destroyed for the scene.

In June, crews filmed for several day at Lake Ontelaunee, a 1,082-acre lake in Berks County. Other scenes were shot at a quarry in upper Bucks County's West Rockhill Township.

IT'S BEEN revealed that director M. Night Shyamalan is already working on the follow-up to next year's The Last Airbender, a live-action adaptation of the animated fantasy series.

The first film, starring 12-year-old Noah Ringer as lead character Aang and Slumdog Millionaire's Dev Patel as evil Prince Zuko, will hit screens on July 2, 2010.

In a world divided into four nations (Earth, Air, Fire and Water), Aang is the only person able to master all four elements and, with the help of two friends, he tries to stop Zuko and the Fire Nation's plan to enslave all the other elemental tribes.

Producer Frank Marshall has now spoken about how they are moving quickly to put together a trilogy.

He said the films would have to be written and shot separately, rather than back to back like the Lord of the Rings series, but they needed to proceed quickly.

Marshall told Starlog: "We're shooting them one at a time, because they're being written one at a time. Night is now working on the script for the second movie, but he hasn't had time to write the second or third ones. He's looking at the arc of all three.

"One of the things we'll be doing is using the sets, ships and elements for each different nation in this film and incorporating them into movies two and three.

"We're not waiting. There just isn't enough time. Night will finish this movie, then the script and then we'll prepare for the next one. I think it'll probably happen over six years."

Clearly, they will have to get moving on the other films as soon as possible, before the actors become too old for their roles.

Ringer, who makes his movie debut in this project, said: "I knew about the cartoon three years before. Ever since I've been shaving my head, everybody has called me Aang. I watched the show because everybody would tell me, 'You have to watch this cartoon. He looks just like you!'

"The movie is definitely different [from the TV series], but if we would've done the same thing as the cartoon, what would be exciting about that? It's fun to change that and do something new."

"It was a real trick to find the perfect cast, because not only did I need excellent actors, but also great action driven fighters. There are so many fight scenes in this film, that this was a cruel experience to locate and find the right team of actors and actresses. I was so lucky to have this young actor Dev Patel [who plays Prince Zuko]. He is now known worldwide due to the success and Oscars for SLUMDOG MILLIONAIRE. He is so vulnerable and so strong at the same time and this was the perfect mix to play Zuko. I had auditioned him for the role before the Oscar success and I wasn’t sure if I could get him after, but he wanted to be part of this film and I’m blessed. He is like a man-child and this is perfect. Another blessing was to find Noah Riger who plays Aang, the Avatar, the principal hero of our movie. He is a young 12-year-old and a true martial arts expert with several titles. He teacher encouraged him to send us a demo tape and we were blown away by his presence, his grace and his technique. And after we sent him to be trained a little bit as an actor we knew we had found the perfect Aang. He is so similar to the Aang in the cartoons and with this great cast I was then able to build a natural structure for the movie itself. When you look at the whole TV series, you can see clearly the three movies I want to create as live action adaptations. Also this is great to be able to incorporate all along the clear philosophy that lies at the core of this mythology and how each element, Air, Earth, Water and Fire are so important as a balance for yourself."