How many movies have Philippa Boyens and Steve Ingram collaborated on?

They have worked on 7 movies together! Their first movie together was The Lord of the Rings: The Fellowship of the Ring (2001) while their highest rated movie together was The Lord of the Rings: The Return of the King (2003). They have not worked together since The Hobbit: The Desolation of Smaug (2013). They are most known for their adventure films together.