How do I know why Miles walks off the stage? Why don't you ask him? And besides, maybe we'd all like to be like Miles, and just haven't got the guts.
So our films had a lot more to them than entertainment value, and I'm glad that a lot of people recognize that now. People realize now the value of them as educational.
Do the thing you fear to do and keep on doing it... that is the quickest and surest way ever yet discovered to conquer fear.