Garbo had a stand-in who was identical to her, and who was said to have ‘everything that Garbo has except whatever it is Garbo has’. What Garbo had was a body that transmitted and received. It was her spine that should have been raved about: every vertebra alive and separated so that feelings flowed in and out from the centre. She responded spontaneously with emotion and warmth, and what she felt, the audience felt, yet the information transmitted by the body was perceived as emanating from the face.
–Keith Johnstone, Impro: Improvisation and the Theatre