Monsters vs Aliens
"Saving the day the monster way."
On her wedding day, Susan Murphy is struck by a mysterious meteor and her body suddenly grows to nearly fifty feet tall. The military takes her into custody, renames her Ginormica, and houses her in a secret government facility alongside an eccentric group of so-called monsters, including a... Read more
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Streaming availability last verified: January 14, 2026
About Monsters vs Aliens
On her wedding day, Susan Murphy is struck by a mysterious meteor and her body suddenly grows to nearly fifty feet tall. The military takes her into custody, renames her Ginormica, and houses her in a secret government facility alongside an eccentric group of so-called monsters, including a gelatinous blob, a brilliant insect scientist, and a prehistoric amphibian. When an extraterrestrial threat appears, the authorities decide to use this odd team as an experimental defense. The film follows Susan as she adapts to an enormous new life, learns to relate to her unusual companions, and faces an escalating sci-fi showdown, all while keeping the story family-friendly and avoiding major plot spoilers.
Monsters vs Aliens was released by DreamWorks Animation in 2009 and directed by Conrad Vernon. The concept and screenplay were by Jonathan Aibel, Rob Letterman, and Maya Forbes, and the release emphasized the star voice cast and broad family appeal.
Financially, the film did well, drawing sizable audiences worldwide and helping DreamWorks' animation slate that year in 2009. It wasn't a niche project, but instead reached mainstream family viewers through wide distribution and strong marketing without relying on adult-only humor.
Characters like Ginormica, B.O.B., and Dr. Cockroach became familiar to kids, and the voice cast, including Reese Witherspoon and Seth Rogen, boosted the film's profile. Its affectionate send-up of classic monster movies and accessible visual gags helped the movie stick in pop culture, especially on home video and kids' programming.
Critical response was mixed to positive, reflected in an average user vote of 6.238/10 from 4,855 votes, which highlights appreciation for the animation and vocal performances. Themes include identity, acceptance and teamwork, wrapped in light satire of sci-fi tropes that keeps the tone humorous, family-oriented, and appealing to family audiences.
Details
- Release Date
- March 19, 2009
- Runtime
- 1h 34m
- Rating
- PG
- User Ratings
- 4,855 votes
- Type
- Movie
- Genres
- Animation, Family, Adventure, Science Fiction
- Country
- United States
- Studio
- DreamWorks Animation
- External Links
- View on IMDB
Official Trailer
Cast
Reese Witherspoon
Susan Murphy / Ginormica (voice)
Seth Rogen
B.O.B. (voice)
Hugh Laurie
Dr. Cockroach Ph.D. (voice)
Rainn Wilson
Gallaxhar (voice)
Will Arnett
The Missing Link (voice)
Kiefer Sutherland
General W.R. Monger (voice)
Paul Rudd
Derek Dietl (voice)
Stephen Colbert
President Hathaway (voice)
Julie White
Wendy Murphy (voice)
Jeffrey Tambor
Carl Murphy (voice)
Director: Conrad Vernon
Written by: Jonathan Aibel, Rob Letterman, Maya Forbes