How many movies have James Gunn and Jeffrey A. Humphreys collaborated on?

They have worked on 4 movies together! Their first movie together was Guardians of the Galaxy Vol. 2 (2017) while their highest rated movie together was Guardians of the Galaxy Vol. 3 (2023). They have not worked together since Guardians of the Galaxy Vol. 3 (2023). They are most known for their adventure films together.