How many movies have Koichiro Kameyama and Ryuji Sainei collaborated on?

They have worked on 4 movies together! Their first movie together was Mahou Sentai Magiranger vs. Dekaranger (2006) while their highest rated movie together was Tokusou Sentai Dekaranger: 10 YEARS AFTER (2015). They are most known for their action films together.