Disabled wife, upstairs bedroom
This will probably seem a very petty, nit-picky critique, but a loud false note for me was the Gina McKee character is in a wheelchair, she has a modest-sized, comfortable looking house and her bedroom is upstairs. Her husband must carry her up there every night, and I suppose downstairs every morning. I have worked with a lot of disabled people and that depiction is ridiculous. First thing every person ending up in a wheelchair after an injury/accident does is get his/her home modified for convenience. That means everything is on a level the person in the chair can reach independently. So the rooms the disabled person must access--bedroom, bathroom, kitchen, dining room, TV room, whatever other room is necessary--will be on the first level that's either flush with the outside entrance or has a lift or a ramp to access it. The absolute LAST thing a wheelchair-user wants is to have a room he needs to go into require him to be carried up stairs to get to. Same with going back down. A two-level house might have a chair lift that carries the disabled person upstairs, but usually the simplest thing is to redesign the living space to have all rooms the wheelchair-user needs to get into on one level. It might be necessary occasionally for him or her to be carried by someone over stairs, etc., but that wouldn't be in the person's home. It's important, and really necessary, for a person in a wheelchair to be able to get around his/her own home completely independently. It's simply impractical for a wheelchair-user to live in a home that requires another person to carry him up stairs. It's also a serious safety hazard.
This is even more true for anyone living in the UK. The government provides a great deal more assistance to the disabled for home modification than the U.S. does for its disabled citizens.
I guess the movie had it this way to highlight how very much in love the married couple was that the husband would carry the wife up to bed every night...but it bugged me because it's so far outside the realm of the real world.