How many movies have Jim Henson and Saman Rouhani collaborated on?

They have worked on 1 movie together! Their first movie together was Sesame Street: Quiet Time (1997) and was their highest rated movie together. They have not worked together since Sesame Street: Quiet Time (1997).

Role
Ernie ("Naptime") / Kermit the Frog (voice) (archive footage)
Role
Grouchketeer