Monsters vs. Aliens (also known as Monsters vs. Aliens in 3D) is an upcoming 2009 computer-animated 3-D feature film from DreamWorks Animation and 20th Century Fox.

This will be the first computer animated movie which will be produced in real 3-D instead of converting the film into 3-D after it is finished, which will add $15 million extra to the film’s budget.

The trailer was seen with the movie Madagascar: Escape 2 Africa. The film was scheduled for a May 2009 release, but they moved it to March 27, 2009, so as to prevent competition with James Cameron’s upcoming Avatar.

The film is rated PG for “Sci-fi Action, Some Crude Humor, and Mild Language.”

Monsters vs. Aliens is starring the voices of Reese Witherspoon, Paul Rudd, Hugh Laurie, Seth Rogen, Will Arnett, Rainn Wilson, Stephen Colbert and Kiefer Sutherland, among others.

Plot
When California resident Susan Murphy (Reese Witherspoon) of Modesto, California (a medium-sized city 100 miles East of San Francisco) grows to 49 ft 11 in (because of being hit by a meteor while being late for her wedding), she is labelled a monster and captured by the military.

She is remanded to an institution that houses other monsters: Dr. Cockroach, Ph.D., an insect-headed mad scientist (Hugh Laurie), the Missing Link, a 20,000-year-old fish-man (Will Arnett), B.O.B., a gelatin-like, jolly, indestructible monster (Seth Rogen) and Insectosaurus, a fuzzy bug that stands at 350 feet tall, making even Susan look tiny by comparison.

When a UFO lands and an alien overlord named Gallaxhar (Rainn Wilson) demands that Earth be given to them, General W.R. Monger (Kiefer Sutherland) suggests to the President (Stephen Colbert) that the monsters can provide the firepower to defeat the aliens.

Directed by
Conrad Vernon
Rob Letterman
Produced by
Lisa Stewart
Jill Hopper (co-producer)
Latifa Ouaou (co-producer)
Written by
Maya Forbes
Wallace Wolodarsky
Rob Letterman
Jonathan Aibel
Glenn Berger
Conrad Vernon

Cast and characters
Monsters/Aliens
* Reese Witherspoon as Susan Murphy (Ginormica): She was once hit by a meteor filled with a strange substance that mutated her DNA, causing her to grow 49 feet 11 inches tall.

* Hugh Laurie as Dr. Cockroach, Ph.D.: A brilliant scientist with the head of a cockroach.

* Will Arnett as The Missing Link: A 20,000 year-old frozen fish-ape hybrid; a jock in his prime, but now rather out of shape.

* Seth Rogen as B.O.B: A blue, indestructible gelatinous mass with no brain.

* Insectosaurus: Transformed by nuclear radiation from a one inch grub into a 350-foot monster.

* Rainn Wilson as Gallaxhar: An alien leader who plans to take over the planet Earth. He is served by an army of self-clones.

Humans
* Stephen Colbert as President Hathaway: The President of the United States. He does not want to go down into history as the one in office when the world came to an end, and therefore agrees with General Monger’s plan to use his captured monsters against the aliens.

* Kiefer Sutherland as General W.R. Monger: Comes up with a plan to let the imprisoned monsters fight the aliens.

* Paul Rudd as Derek Dietl: Susan Murphy’s fiancé.
* Jeffrey Tambor as Carl Murphy
* Julie White as Wendy Murphy:Carl’s wife, Susan’s mother.
Music by Henry Jackman
Editing by Joyce Arrastia, Eric Dapkewicz
Distributed by
USA: DreamWorks Animation, Paramount Pictures
International: United International Pictures
Release date(s) March 27, 2009 (USA) / April 2, 2009 (AUS) / April 3, 2009 (UK)
Running time 94 min
Country United States
Language English

Official Website:  www.monstersvsaliens.com