When Daft Jamie is being shown at the medical school, in the close-up of his foot, his toes move.
As Dr Knox tells his joke around the dinner table to the other three doctors, the shadow of the boom mic is moving around on the wall to the right of the shot.
Dr. Knox refers Arbuthnot to the Scripture, "In the midst of life we are in death." That isn't in the Bible but comes from the Anglican Book of Common Prayer.