How many movies have Anne McKnight and Charles Grey collaborated on?

They have worked on 1 movie together! Their first movie together was Toscanini: The Television Concerts, Vol. 2: Beethoven Symphony No. 9 (1948) and was their highest rated movie together. They have not worked together since Toscanini: The Television Concerts, Vol. 2: Beethoven Symphony No. 9 (1948).