How many movies have Sally Mattison and Wayne Grace collaborated on?

They have worked on 3 movies together! Their first movie together was Heroes Stand Alone (1989) while their highest rated movie together was Slumber Party Massacre III (1990). They have not worked together since Slumber Party Massacre III (1990). They are most known for their action films together.

Slumber Party Massacre III (1990)

Crew
Director
Role
Officer O'Reilly

Wizards of the Lost Kingdom II (1989)

Crew
Associate Producer
Role
Vanir

Heroes Stand Alone (1989)

Crew
Associate Producer
Role
Major Grigori