| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Sahara (2005) | £1,370,577 | £1,370,577 | £1,370,577 | new | 1 |
| 2 (1) |  | The Ring Two (2005) | £966,187 | £1,995,842 | £4,058,634 | -53% | 2 |
| 3 (5) |  | Valiant (2005) | £906,754 | £2,093,583 | £5,969,322 | -2% | 3 |
| 4 (4) |  | Robots (2005) | £845,684 | £2,087,266 | £10,511,197 | -15% | 4 |
| 5 (2) |  | Be Cool (2005) | £798,485 | £1,611,125 | £2,808,009 | -33% | 2 |
| 6 (3) |  | Hitch (2005) | £767,489 | £1,616,441 | £15,553,482 | -28% | 5 |
| 7 (6) |  | Miss Congeniality 2: Armed and Fabulous (2005) | £545,041 | £1,194,585 | £4,427,133 | -22% | 3 |
| 8 (7) |  | Constantine (2005) | £312,399 | £668,590 | £6,124,103 | -38% | 4 |
| 9 (8) |  | Hostage (2005) | £177,489 | £338,722 | £3,772,564 | -33% | 5 |
| 10 (9) |  | Downfall (2005) | £164,459 | £0 | £478,315 | 1% | 2 |
| 11 (new) |  | The Assassination of Richard Nixon (2005) | £157,756 | £157,756 | £157,756 | new | 1 |
| 12 (new) | | Bullet Boy (2005) | £140,332 | £140,332 | £140,332 | new | 1 |
| 13 (10) |  | Poohs Heffalump Movie (2005) | £132,775 | £313,980 | £1,252,691 | -3% | 4 |
| 14 (new) |  | Man of the House (2005) | £126,331 | £126,331 | £126,331 | new | 1 |
| 15 (new) |  | Lucky: No Time For Love (2005) | £122,913 | £122,913 | £122,913 | new | 1 |