How many movies have Bruno de Simone and Umberto Benedetti Michelangeli collaborated on?

They have worked on 1 movie together! Their first movie together was Gioachino Rossini: L'equivoco Stravagante (2010) and was their highest rated movie together. They have not worked together since Gioachino Rossini: L'equivoco Stravagante (2010).