How many movies have Phil Lesh and Trey Anastasio acted in together?

They have worked on 4 movies together! Their first movie together was Grateful Dead: 2015.06.28 - Santa Clara, CA (2015) while their highest rated movie together was Grateful Dead: Fare Thee Well - 50 Years of Grateful Dead (Chicago) (2015). They have not worked together since Grateful Dead: Fare Thee Well - 50 Years of Grateful Dead (Chicago) (2015). They are most known for their music films together.