How many movies have Ernesto Panariello and Riccardo Muti collaborated on?

They have worked on 2 movies together! Their first movie together was Tosca (2000) and was their highest rated movie together. They have not worked together since Verdi, Un Ballo in Maschera - Salvatore Licitra, Maria Guleghina, Riccardo Muti, Teatro alla Scala (2001).