How many movies have Joel Silver and Mary Ellen Trainor collaborated on?

They have worked on 9 movies together! Their first movie together was Lethal Weapon (1987) while their highest rated movie together was Tales from the Crypt: The Robert Zemeckis Collection (1999). They have not worked together since Tales from the Crypt: The Robert Zemeckis Collection (1999). They are most known for their action films together.