The summer of sequels rolls on with “Men in Black III,” another lightweight outing with Will Smith and Tommy Lee Jones as those ultra-secret government agents tasked with wrangling space aliens here on Earth.
This time around, Agents J (Smith) and K (Jones -- come to think of it, why didn’t they just name these spooks after their actors’ real names?) have a fierce villain to content with: Boris the Animal (roaringly played against type by Jemaine Clement of “Flight of the Conchords”), who goes back in time to kill Agent K, the agent who shot his arm off and locked him up back in 1969.