How many movies have Catherine Mallette and Harvey Kahn collaborated on?

They have worked on 21 movies together! Their first movie together was Signed, Sealed, Delivered for Christmas (2014) while their highest rated movie together was Signed, Sealed, Delivered: Lost Without You (2016). They have not worked together since A Cinderella Story: Christmas Wish (2019). They are most known for their tv movie films together.