Murtaugh & Riggs
Movie: The Lethal Weapon franchise
Played by: Danny Glover and Mel Gibson
Relationship dynamic: Murtaugh, the veteran cop who's "too old for this shit," gets paired up with Riggs, a loose canon who lives on the edge because he thinks he has nothing left to live for.
Cop talk: "I'll tell you what. You make it through tomorrow without killing anybody, especially me, or yourself, then I'll start trusting you."