Audio problem: During the Christmas concert at the end, Sam's drumming doesn't match the music in some shots.

Continuity: When Jaime is in the lake helping Aurelia retrieve the book pages, in one shot a page is quite close behind his head and in the subsequent shot the page is at least a foot or two away.

Factual error: In the scene where Natalie goes to see the Prime Minister in his office, she is holding a buff coloured folder marked: 'SECRET - TREASURY DEPARTMENT'. However, folders within Government/Ministry of Defence etc are colour coded as follows: Red or Pink for Secret, Green for Confidential and Buff for Restricted & Unclassified for the obvious reason of ease of identification and security.

Continuity: After the long day of (non) negotiations David and the US President sit on the sofas to talk. In the first wide shot the pillow stripes under the President's arm are vertical. In the following close-ups they lie horizontal, then back to vertical in the wide shot.

Continuity: When Sarah and Karl arrive at her flat, she runs up first to straighten up a bit and throws her coat over a bunch of clothes on the chair. Karl then joins her upstairs and, in the wide shot as they rush towards each other, the coat is positioned differently than in the following close-up as they embrace.