Tell about some facts about movie Avatar ?

Don’t let your jaw drop to the floor with this one, but the film is one of the most expensive ever made – with a price tag of $280 million!

First movie to ever cross the US$ 2,000,000,000 mark worldwide (and later the US$ 2.5 billion mark), making it the highest grossing film in history. One of the most expensive movies ever made (as of December 2009), with an estimated budget of US $280,000,000.

21. James Cameron wanted an unknown actor to play Jake Sully, because it would give the character a “real” quality.

Avatars still have five digits and sport eyebrows, whereas the Na’vi have no eyebrows and only four digits. The more you know.

Avatars have eyebrows and five digits per hand or foot while the Na’vi only have four and no eyebrows. The Avatars are also broader in the chest and arms, appearing more ‘muscular’

22. Sam Worthington said in an interview that it was easier for him to master the Na’vi language than the American accent.

23. The whooping and cackling sounds made by the wolf life predators on Pandora are actually real spotted hyena calls.

To help the actors prepare for their roles, director James Cameron took the cast and crew to Hawaii, where they spent their days trekking through the forests and jungles and living like tribes (building campfires, eating fish, etc), in order to get a better sense of what it would be like to live and move around in the jungle on Pandora, since there would not be any actual jungle sets to aid and guide the actors and crew.

Sigourney Weaver’s avatar wears a Stanford tank top for majority of the film and it so happens that the actress attended the college in the 1970s.

24. Composer James Horner stated that Avatar was his most difficult film and the biggest challenge of his career. He said in an interview that he worked on the music from 4 AM to 10 PM for a year and a half.

The actors playing the Na’vi had cameras attached to their heads, filming the close-ups of their faces. The dots painted on their faces allowed the framework of their expressions to be captured for the CGI artists.

Zoe Saldana even dressed up as a warrior during these journeys, complete with an alien tail symbolic of the one her character has in the movie. These hikes were only done during the daytime, though; the cast and crew spent their nights at a Four Seasons hotel.

Colonel Quaritch mentions that being on Pandora made him feel “like a shave-tail Looie.” “Shave tail” was a term originally used in the 19th century among U.S. cavalry regiments. Newly assigned cavalry troopers were given horses with a shaved tail, to let other troopers know that the rider was dangerously inexperienced, and should be given extra room to maneuver during training.

25. All animals on Pandora have six limbs, except for the humans and the Na’vi.

It is the first film ever to pick up an Academy Award for Best Cinematography that was completely digitally shot.

“Unobtainium” is a humorous term used mainly in the aerospace industry. It describes a material that is perfect for an application, but does not exist, is extremely expensive, or violates the laws of physics. Its chemical symbol is Uo.

In the original ending, Neytiri was planned to be pregnant with Jake’s child.

“Unobtainium” is also a general concept term used by sci-fi enthusiasts for any fictional substance that is needed to build a certain device that is crucial to the plot of a sci-fi story

James Cameron is famous for many things – one of them is being strict on the set. The director allegedly kept a nail-gun with him to nail cellphones that would ring during production above the exit sign

“Unobtainium” is featured in the movie The Core (2003), where the earth-boring vessel called the “Virgil” has a hull made from unobtainium to help it withstand the massive pressures inside the Earth’s core. “Unobtainium” is also an anti-gravity element in the online multi-player video game “Skyrates.”

The actors playing the Na’vi had cameras attached to their head so that they filmed close-ups of their faces. Dots painted on their faces allowed motion-capture software to record their facial expressions, providing a ‘framework’ from which the CG artists worked.

The concept of a network of trees in which minds of the deceased continue to exist appears in several novels of the “Ender” series by Orson Scott Card, most prominently in “Speaker for the Dead”. Just like in the movie, the trees in the novel are sacred to the native (remotely humanoid) inhabitants, who tolerate the presence of a small human colony on their world until cultural misunderstandings lead to conflict.

The first time Sigourney Weaver has appeared in a James Cameron film since Aliens (1986). Cameron said that he didn’t want to cast her at first, exactly because “she was [his] safest choice to play the botanist.”

26. The book Grace picks up in the abandoned school is called “The Lorax” by Dr. Seuss. Like the plot of the movie, the book is about a forest full of beautiful trees and mystical creatures that are destroyed by man’s lust for ever growing industry.

In the final battle sequence, Jake jumps onto Col. Quaritch’s gunship. The colonel sees Jake and pushes the control stick to swerve the ship. Jake loses balance and slides down the ship, where he grabs and hangs onto a missile. This is a reference to True Lies (1994), also directed by James Cameron. In that film Arnold Schwarzenegger’s character uses the control stick to swerve the Harrier jet he is flying