How many movies have Lloyd A. Simandl and Thom Schioler collaborated on?

They have worked on 3 movies together! Their first movie together was Empire of Ash (1988) while their highest rated movie together was Xtro 2: The Second Encounter (1990). They have not worked together since Xtro 2: The Second Encounter (1990). They are most known for their science fiction films together.