Men in Black 3 (2012)

In a time-bending twist, Agents J and K make a return to the forefront. Throughout his decade and a half with the enigmatic Men in Black, Agent J has witnessed numerous mind-boggling occurrences, yet none have left him as puzzled as his dry-witted, reserved partner. However, when the very existence of K and the world hangs in the balance, J must journey back through time to rectify the situation. Along the way, he unearths long-hidden truths about the cosmos that K had kept from him, truths that come to light as he joins forces with a youthful version of Agent K to safeguard his comrade, the organization, and the future of mankind.