How many movies have Mark Pokorny and Philippa Boyens collaborated on?

They have worked on 4 movies together! Their first movie together was The Hobbit: An Unexpected Journey (2012) while their highest rated movie together was The Hobbit: The Desolation of Smaug (2013). They have not worked together since Mortal Engines (2018). They are most known for their adventure films together.