The movie entered the chart at the top spot, dethroning Harry Potter and the Goblet of Fire which had occupied the slot for three weeks, and exceeding the first weekend takings of the previous Disney record-holder, Toy Story 2.
Meanwhile, the week's only other wide release, Morgan Freeman-narrated documentary March of the Penguins, waddled into the chart in ninth place.
The UK box office chart:
1. (-) Chronicles of Narnia: The Lion, The Witch and The Wardrobe
2. (1) Harry Potter and the Goblet of Fire
3. (2) Flightplan
4. (4) Keeping Mum
5. (3) The Exorcism of Emily Rose
6. (5) Doom
7. (6) Mrs. Henderson Presents
8. (7) The Constant Gardener
9. (-) March of the Penguins
10. (8) Nanny McPhee