How many movies have Betsy Jones-Moreland and Reuben Cannon collaborated on?

They have worked on 7 movies together! Their first movie together was Perry Mason: The Case of the Silenced Singer (1990) while their highest rated movie together was Perry Mason: The Case of the Skin-Deep Scandal (1993). They have not worked together since Perry Mason: The Case of the Telltale Talk Show Host (1993). They are most known for their crime films together.