How many movies have Kevin Clash and Tony Geiss collaborated on?

They have worked on 6 movies together! Their first movie together was Sesame Street: Put Down the Duckie: An All-Star Musical Special (1988) while their highest rated movie together was Sesame Street: Elmo's World: The Street We Live On! (2004). They have not worked together since Sesame Street: Elmo's World: All about Faces (2010). They are most known for their family films together.