Agents Kay (Tommy Lee Jones) and Jay (Will Smith) are members of a top secret organization that monitors and polices alien activity on Earth. They find themselves in the middle of an intergalactic terrorist plot. In order to prevent worlds from colliding, the MIB must find the terrorist behind this plot and save the Earth.
Time travel is employed to save the Universe and agent J (Will Smith) is our man in Manhattan to do it. Tongue in every cheek. Agent K has been murdered by an alien criminal, Boris the Animal, played by Jermaine Clement with pure terror. He has sockets for eyes, one arm and a voice that sounds like a malfunctioning exhaust. In the opening sequence, Boris escapes from his maximum security prison on the moon intent on murdering Agent K.
Agent J must travel back in time to 1969 to rescue Agent K and the Universe from Boris's diabolical plot (a young Agent J, played with amazing accuracy by Josh Brolin who mimics Tommy Lee Jones' austere yet humorous delivery). There is a space launch at Cape Canaveral and Agent J must place an object on top of the rocket just prior to launch or worlds will collide.
In MIB headquarters when the film begins, we meet a radiant and more beautiful than ever Agent O played with precision by the deft Emma Thompson. When we go back in time to 1969 Agent O becomes the stunning Alice Eve.
What did not work was a scene in The Factory in Manhattan based on Warhol's 1969 establishment with aliens partout. Warhol is poorly portrayed by Bill Hader. But one mediocre scene could not run this movie into oblivion. What did work was the opening scene in a Chinese restaurant with bizarre fish-like monsters which creates a smash-up beginning for this odd, endearing film.
Buckle your seat belt. This is one bumpy, but enjoyable ride and leads right into a sequel. Get ready for MIB4 as soon as writers Lowell Cunningham, the comic genius, and Elan Cohen, David Koepp, Jeff Nathanson and Michael Soccio return to this Universe with their laptops and go to work. Be prepared for another alien invasion. I warned you.