Films take up so much time, and with theatre, you do have to plan a period of time that you can be free.
In my experience it's not essential to get on with the person that you're acting opposite.
The main reason for the failure of the modern medical science is that it is dealing with results and not causes. Nothing more than the patching up of those attacked and the burying of those who are slain, without a thought being given to the real strong hold.