How many movies have John Holmquist and Patrick Warburton collaborated on?

They have worked on 1 movie together! Their first movie together was Family Guy Presents: Stewie Kills Lois and Lois Kills Stewie (2007) and was their highest rated movie together. They have not worked together since Family Guy Presents: Stewie Kills Lois and Lois Kills Stewie (2007).