How many movies have Humberto Cabañas and Rogelio Agrasánchez Sr. collaborated on?

They have worked on 6 movies together! Their first movie together was The Castle of Mummies of Guanajuato (1973) while their highest rated movie together was Mystery in the Bermuda Triangle (1979). They have not worked together since La banda del polvo maldito (1979). They are most known for their action films together.