The futuristic film is a science fiction where soldiers pilot giant robots in a battle against giant monsters.
The film has been directed by Guillermo del Toro who has also written the story with Travis Beacham.
Set in future, giant monsters called "Kaiju" rise from a portal in a crevasse beneath the Pacific Ocean, resulting in a war that takes millions of lives and quickly consumes humanity's resources.
To combat the monsters, a special type of weapon is designed: massive robots, known as Jaegers, which are controlled simultaneously by two pilots whose minds are locked in a neural bridge.
This week's Hollywood release has giant monsters pitted against robots in 'Pacific Rim'.
As the war continues, even the Jaegers struggle to win the war against a relentless enemy.
The film promises to have amazing special effects.
Actors Charlie Hunnam and Idris Elba play important roles in the film.
Del Toro intended the film to have an "incredibly airy and light feel", in contrast to the "super-brooding, super-dark, cynical summer movie".
The film is produced by Legendary Pictures and will be distributed by Warner Bros.