Lethal Weapon (Franchise)

Lethal Weapon is an American buddy cop action film franchise created by Shane Black, centered on Los Angeles Police Department detectives Martin Riggs (Mel Gibson) and Roger Murtaugh (Danny Glover). The four films are Lethal Weapon (1987), Lethal Weapon 2 (1989), Lethal Weapon 3 (1992), and Lethal Weapon 4 (1998) (Wikipedia)