According to Richard E. Grant's diaries the part of the father was meant to be younger but all the actors were asked in that age range passed so an older actor was chosen.
When Ralph comforts Ruby at the hospital, her dress starts slipping from her right shoulder. When the camera takes a close shot, the dress is up to her neck.
Harry Compton: I suppose you think this is all so bloody easy. Well, wake up. Just you wait until you lose everything. And I mean everything. Wife, position, future. The whole damn kit and caboodle. Come independence, we're all on the scrapheap. So wake up.