"The main objection I have to the picture work is the amount of idle time which one has to put in during the filming of a picture. The 'waits' are appallingly burdensome. On one occasion I was told to be ready, in full evening dress, for a scene at 9 o'clock on a Monday morning. I waited all day Monday, Tuesday and Wednesday, from 9 a.m. to 4.30 p.m. The scene was 'shot' finally at 4 p.m. on Thursday. The delay was apparently unavoidable, but, to me, exceedingly irksome. This was an unusual case, but it illustrates to a large degree what picture actors have to put up with in the way of idle time..."
(Plus ça change!) This one's not specifically Rupert-related, of course, but an interesting comment on the industry of the time - from the Auckland Star article referred to in his biography at NZ On Screen.