How many movies have Alex McArthur and Charles E. Sellier Jr. collaborated on?

They have worked on 3 movies together! Their first movie together was Desperado: Avalanche at Devil's Ridge (1988) while their highest rated movie together was Desperado: The Outlaw Wars (1989). They have not worked together since Desperado: Badlands Justice (1989). They are most known for their western films together.