How many movies have Jeffrey W. Sass and Phil Rivo collaborated on?

They have worked on 4 movies together! Their first movie together was The Toxic Avenger Part II (1989) while their highest rated movie together was Sgt. Kabukiman N.Y.P.D. (1991). They have not worked together since Class of Nuke 'Em High 2: Subhumanoid Meltdown (1991). They are most known for their comedy films together.