Men In Black 3 Full Trailer

Finally, a new trailer for 'Men in Black 3' is out after a very teasy teaser trailer that didn't really tell us much. But this trailer shows a lot more goods and a better look at what the 'Back to the Future'-like plot is going to look like, as well as a better look at Josh Brolin playing a younger K. Tommy Lee Jones looks pretty bored in the film, though. And also, the film looks tonally confused as it jumps from comedy to melodramatic moments to zany comedy once again. I hope there's actual comedy in this one though, since the second part was kind of very lame.
Plot - In Men in Black 3, Agents J (Will Smith) and K (Tommy Lee Jones) are back… in time. 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.