The movie represents at least a partial return to form--not as inventive as the first, but surely better than the recycled materials that made up the second.
The Smith-Jones duo's return as the titularly clad operatives, while not exactly essential, comes with the charms of reprised, well-liked characters and a "didn't-see-that-coming" conclusion that makes up for the first hour's sequelitis.
Washington Post
May 25, 2012
If there ever is a "Men in Black IV" -- and at this point, it's hard to imagine one -- let's hope it finds that delicate balance between the yuks and the yucks.