6.1/10
46,104
74 user 156 critic
Trailer
2:24 | Trailer

Watch Now

From $2.99 (SD) on Prime Video

ON DISC
An alien civilization is invaded by Astronaut Chuck Baker, who believes that the planet was uninhabited. Wanted by the military, Baker must get back to his ship before it goes into orbit without him.

Directors:

Jorge Blanco, Javier Abad (co-director) | 1 more credit »

Writers:

Joe Stillman (script by), Javier Abad (original idea by) | 3 more credits »
4 wins & 4 nominations. See more awards »

Videos

Photos

Learn more

More Like This 

Astro Boy (2009)
Animation | Action | Comedy
    1 2 3 4 5 6 7 8 9 10 6.3/10 X  

When an android replica of a boy is rejected by his aggrieved creator, he goes off to find his own identity in an adventure that would make him the greatest hero of his time.

Director: David Bowers
Stars: Freddie Highmore, Nicolas Cage, Kristen Bell
The Ant Bully (2006)
Animation | Adventure | Comedy
    1 2 3 4 5 6 7 8 9 10 5.8/10 X  

After Lucas Nickle floods an ant colony with his watergun, he's magically shrunken down to insect size and sentenced to hard labor in the ruins.

Director: John A. Davis
Stars: Paul Giamatti, Nicolas Cage, Julia Roberts
Animation | Adventure | Comedy
    1 2 3 4 5 6 7 8 9 10 5.9/10 X  

Astronaut Scorch Supernova finds himself caught in a trap when he responds to an SOS from a notoriously dangerous alien planet.

Director: Cal Brunker
Stars: Brendan Fraser, Sarah Jessica Parker, Jessica Alba
G-Force (2009)
Animation | Action | Adventure
    1 2 3 4 5 6 7 8 9 10 5.1/10 X  

A specially trained squad of guinea pigs is dispatched to stop a diabolical billionaire from taking over the world.

Director: Hoyt Yeatman
Stars: Will Arnett, Penélope Cruz, Zach Galifianakis
Open Season (2006)
Animation | Adventure | Comedy
    1 2 3 4 5 6 7 8 9 10 6.1/10 X  

Boog, a domesticated 900lb. Grizzly bear, finds himself stranded in the woods 3 days before Open Season. Forced to rely on Elliot, a fast-talking mule deer, the two form an unlikely friendship and must quickly rally other forest animals if they are to form a rag-tag army against the hunters.

Directors: Roger Allers, Jill Culton, and 1 more credit »
Stars: Ashton Kutcher, Martin Lawrence, Debra Messing
Animation | Adventure | Family
    1 2 3 4 5 6 7 8 9 10 6/10 X  

Ten-year-old Arthur, in a bid to save his grandfather's house from being demolished, goes looking for some much-fabled hidden treasure in the land of the Minimoys, tiny people living in harmony with nature.

Director: Luc Besson
Stars: Freddie Highmore, Mia Farrow, Madonna
Hoodwinked! (2005)
Animation | Comedy | Crime
    1 2 3 4 5 6 7 8 9 10 6.5/10 X  

Little Red Riding Hood, the Wolf, the Woodsman, and Granny all tell the police the events that led up to their encounter.

Directors: Cory Edwards, Todd Edwards, and 1 more credit »
Stars: Anne Hathaway, Glenn Close, Patrick Warburton
Robots (2005)
Animation | Adventure | Comedy
    1 2 3 4 5 6 7 8 9 10 6.3/10 X  

In a robot world, a young idealistic inventor travels to the big city to join his inspiration's company, only to find himself opposing its sinister new management.

Directors: Chris Wedge, Carlos Saldanha
Stars: Ewan McGregor, Halle Berry, Mel Brooks
Valiant (2005)
Animation | Adventure | Comedy
    1 2 3 4 5 6 7 8 9 10 5.6/10 X  

At the height of WWII, a tiny wood pigeon enlists in the elite Royal Homing Pigeon Service to serve Britain, as the fearsome General Von Talon and his deadly squadron of falcons patrol the English Channel. Is he a war-hero in the making?

Director: Gary Chapman
Stars: Ewan McGregor, Ricky Gervais, Tim Curry
Animation | Action | Adventure
    1 2 3 4 5 6 7 8 9 10 6.5/10 X  

A woman transformed into a giant after she is struck by a meteorite on her wedding day becomes part of a team of monsters sent in by the U.S. government to defeat an alien mastermind trying to take over Earth.

Directors: Rob Letterman, Conrad Vernon
Stars: Reese Witherspoon, Rainn Wilson, Stephen Colbert
Animation | Adventure | Comedy
    1 2 3 4 5 6 7 8 9 10 6.7/10 X  

A scheming raccoon fools a mismatched family of forest creatures into helping him repay a debt of food, by invading the new suburban sprawl that popped up while they were hibernating...and learns a lesson about family himself.

Directors: Tim Johnson, Karey Kirkpatrick
Stars: Bruce Willis, Garry Shandling, Steve Carell
Flushed Away (2006)
Animation | Adventure | Comedy
    1 2 3 4 5 6 7 8 9 10 6.6/10 X  

The story of an uptown rat that gets flushed down the toilet from his penthouse apartment, ending in the sewers of London, where he has to learn a whole new and different way of life.

Directors: David Bowers, Sam Fell
Stars: Hugh Jackman, Kate Winslet, Ian McKellen
Edit

Cast

Cast overview, first billed only:
Dwayne Johnson ... Captain Charles T. Baker (voice)
Jessica Biel ... Neera (voice)
Justin Long ... Lem (voice)
Gary Oldman ... General Grawl (voice)
Seann William Scott ... Skiff (voice)
John Cleese ... Professor Kipple (voice)
Freddie Benedict Freddie Benedict ... Eckle (voice)
Alan Marriott ... Glar (voice)
Mathew Horne ... Soldier Vesklin (voice)
James Corden ... Soldier Vernkot (voice)
Lewis Macleod ... Additional Voices (voice)
Emma Tate Emma Tate ... Additional Voices (voice)
Rupert Degas ... Additional Voices (voice)
Pete Atkin Pete Atkin ... Additional Voices (voice)
Rebecca Front ... Additional Voices (voice)
Edit

Storyline

Lem is just an average teenager working on getting the girl and furthering his career at the local planetarium - except that he's an alien. At least to U.S. astronaut Captain Charles T. Baker who lands on Lem's planet hoping for a quick flag plant and a hasty return to earth and his millions of screaming fans. But on this alien planet the media has tagged spacemen as brain-eating, zombie-creating monsters, causing Baker to run for his life and into Lem's house. Now it's up to the green native to get the clumsy astronaut back to his spaceship before military dictator General Grawl and mad scientist Professor Kipple manage to exterminate the Earthly visitor. Written by The Massie Twins

Plot Summary | Plot Synopsis

Taglines:

Right stuff. Wrong planet. See more »


Motion Picture Rating (MPAA)

Rated PG for mild sci-fi action and some suggestive humor | See all certifications »

Parents Guide:

View content advisory »
Edit

Details

Country:

Spain | UK | USA

Language:

English | Spanish

Release Date:

20 November 2009 (USA) See more »

Also Known As:

Planeta 51 See more »

Filming Locations:

Kingman, Arizona, USA

Company Credits

Show more on IMDbPro »

Technical Specs

Runtime:

Sound Mix:

Dolby Digital

Color:

Color

Aspect Ratio:

2.35 : 1
See full technical specs »
Edit

Did You Know?

Trivia

All the female aliens wear dresses. The males wear shirts without pants. See more »

Goofs

(at around 28 mins) When the soldiers remove items from Chuck's spacecraft, one of them drops an iPod, which begins loudly playing music for all to hear. iPods don't have speakers, just a headphone jack. See more »

Quotes

[first lines]
girl: I've never gone parking before. I'm really not that kind of a girl.
boy: Well, I'm not the kind of a guy who would go with *that* kind of girl.
girl: Why that's so sweet - I think.
boy: There's nothing to be scared of.
[as alien craft rears up in front of them]
See more »

Crazy Credits

There is an additional scene halfway through the end credits. See more »

Connections

References Star Trek: The Next Generation (1987) See more »

Soundtracks

Be Bop a Lula
Written by Gene Vincent and Tex Davis
Used by kind permission of Carlin Music Corp.
Lead Vocal by Chris Cawte
Backing Vocals by Keith Murrell
Arranged by Chris Cawte
Produced by Graham Walker
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

 
Good movie - NOT a rip-off
20 March 2011 | by fred-m-stabsSee all my reviews

Please disregard RichardSRussell-1's review, I am not sure he watched the movie, at least not with very much attention. First, he states "humans as the bad guys" but the only human was the movie's good guy! The military general was the bad guy, and even a four year old could easily see that. Second, I'm not sure if he is familiar with movies playing on themes and paying homage to other movies, stories, and so forth. That's not ripping off, but that reviewer obviously can't even grasp that concept. Countless movies, perhaps most of them, will include scenes and lines deliberately intended to make reference other works – this is not plagiarism, it's paying homage! There has not been a single children's animated movie with this particular theme, not even close (at least no movie or major work). Yes, it is essentially a reverse E.T. and builds on many, many other movies that have come before. But the overall work is not a copy of anything else.

It's a play on the common movie theme, and popular attitude in the 1950's, that all aliens must be terrifying monsters and the civic paranoia and fear that follows the suggestion of an alien visitor. Given that, it *has* to copy themes and images and possibly even lines from other movies. That's the whole point.

Having seen almost every kid's animated movie out there, I found this movie to be very enjoyable and I loved seeing it. More importantly (at least if you're a parent) my kids loved this movie, and they don't like every kid's movie. It may not be the greatest movie of all time, but I would definitely recommend it and a great watch.


9 of 10 people found this review helpful.  Was this review helpful to you? | Report this
Review this title | See all 74 user reviews »

Contribute to This Page

Stream Popular Action and Adventure Titles With Prime Video

Explore popular action and adventure titles available to stream with Prime Video.

Start your free trial



Recently Viewed