Men In Black 3 Trailer #2

Men in Black 3 (stylized MIB3, and formerly known as Men in Black III-D) is an upcoming 3D science fiction comedy film starring Will Smith and Tommy Lee Jones. It will be released as the sequel to Men in Black and Men in Black II on May 25, 2012, ten years after its predecessor, and fifteen years after the original. It will also star Josh Brolin, Emma Thompson and Jemaine Clement, with Barry Sonnenfeld returning as director, and Steven Spielberg returning as executive producer. The film is the third entry in the Men in Black film series which is based on the Malibu / Marvel comic book series The Men in Black by Lowell Cunningham. Principal photography began in New York City on November 16, 2010.

Premise:
J has seen some inexplicable things in his 15 years with the Men in Black, but nothing, not even aliens, perplexes him as much as his wry, reticent partner. But when K's life and the fate of the planet are put at stake, Agent J will have to travel back in time to put things right. J discovers that there are secrets to the universe that K never told him -- secrets that will reveal themselves as he teams up with the young Agent K (Josh Brolin) to save his partner, the agency, and the future of humankind.