Karen: Tell me, what would you do in my position?
Harry: What position is that?
Karen: Imagine your husband bought a gold necklace and come Christmas gave it to somebody else...
Harry: Oh, Karen...
Karen: Would you wait around to find out if it's just a necklace, or if it's sex and a necklace, or if worst of all it's a necklace and love? Would you stay, knowing life would always be a little bit worse? Or would you cut and run?
Harry: Oh, God. I am so in the wrong. The classic fool.
Karen: Yes, but you've also made a fool out of me, and you've made the life I lead foolish too.
Juliet arrives at Mark's flat and brings banoffee pie with her, wanting to see the wedding video. She slips the video into the VCR and places the open pastry box on top of the TV stand. As she takes her jacket off the pastry box is gone, yet in the next shot of the TV the box is right next to the remote, which then changes position in the last shot when the remote disappears. The TV is in the center of the stand in some shots, but to the left of the stand in other shots. The video cassettes, etc., change/alter their position within these shots as well.
Any viewers outside of Britain might not get the joke when Billy Mack isn't sure which one is Ant or Dec. They are very well known in the UK, and dominate Saturday night telly. The joke refers to the fact that even though they are popular, a lot of people don't know which one's which.