Men in Black 3 (2012)

Agents J and K embark on a time-traveling adventure that challenges their unique partnership. Despite years of facing extraordinary challenges, nothing prepares J for the mystery surrounding his taciturn partner, K. When K's life is endangered, along with the future of Earth, J must journey to the past to fix the timeline. Along the way, he uncovers hidden truths about the universe and K's past, teaming up with a younger version of K. Together, they must navigate time and secrets to save not only their partnership but the entire humanity.