The first feature film funded entirely by the BBC (courtesy of the British taxpayers).
The second sex scene between May (Anne Reid) and Darren (Daniel Craig) was shot over a two day period.
Anne Reid revealed that she was so terrified at the prospect of filming sex scenes with Daniel Craig that she got drunk and then burst into tears.
She told that she almost quit over her fears of taking her clothes off in front of Craig in this movie.
Anne, who was 68 at the time, said: 'The night before I had a lot of drink on my own in the flat, and I stripped and I stood in front of a mirror and thought, "Tomorrow I am going to have to show this."
'And I started to cry. I thought, "Oh my God, I can't do this." So I rang my son and I was weeping.
'He said, "Look, Mum, if you are inhibited it's not going to work - just go for it." I managed to pull myself together but it was scary.'
Filmed entirely on-location. Daytime scenes were filmed using only natural light. For nighttime scenes, the crew again used as many practicals as possible (table lamps, fixtures already at the location, et cetera) rather than rigging large lighting kits that would have required a generator (the crew did not use one).
The son's house in the film is shown to be situated in the Notting Hill section of London, but the interiors and backdrop were all shot at a house in Chiswick. In scenes where the fancy Notting Hill row houses can be seen through the front door, the houses have been put in using CGI.