Why is The Robe (1953) considered an important film in the history of the sound track?
1) It was the first film to involve a collaboration between a film studio and a major symphony orchestra.
2) It was the first film to make use of a commercially feasible stereo sound system.
3) It was the first "sword and sandal" epic to use historical musical instruments.
4) It was the first feature film shot in Cinemascope and the audio background shifts with the scale of each shot.