"Men in Black 3” comes 15 years after the entertaining original and 10 years after the sequel laid an egg, and the surprise is, it's better than the first one. Given the passage of time, the entire concept may be new to some audience members, but it still does service: There is a secret agency assigned to keeping track of all aliens on Earth, and there are as many of them as makeup expert Rick Baker can possibly devise. I am not sure how undercover an MiB agent can be when he dresses exactly like the Blues Brothers, but never mind, they get the job done.
Both Will Smith and Tommy Lee Jones have said that they would "consider" appearing in a Men in Black 4. Jones said it would be "easy to pick up where we left off. We know what we are doing, we know how to do it. It's just a hell of a lot of fun. In July 2012, Columbia chief executive Doug Belgrad said: "We're very pleased with the financial performance of Men in Black 3, and we believe it is an ongoing franchise. We're going to do [another one], but we don't have clarity yet on how it should be done." Barry Sonnenfeld said: "Will's kind of really smart, but as I said, kind of really annoying, too much energy. When he would get too rambunctious, I would tell him that for Men in Black 4, Will is out and [his son] Jaden Smith is in … if we continue on this path, it won't be released until 2032 but it will be damn good." Will Smith said that: "Jaden is already 14 years old, so he's at that mythological boys age, you know – it's time for his bro-mitzvah. So he's right at that place ... He's ready to test me so he can't come anywhere near my movies right now!"
In the highly anticipated sequel “Men in Black 3,” Agents J and K 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.