How many movies have Hayden Christensen and Ian McDiarmid acted in together?

They have worked on 3 movies together! Their first movie together was Star Wars: Episode II - Attack of the Clones (2002) while their highest rated movie together was Star Wars: Episode III - Revenge of the Sith (2005). They have not worked together since Star Wars: The Rise of Skywalker (2019). They are most known for their action films together.