| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Calendar Girls (2003) | £1,877,197 | £1,877,197 | £1,877,197 | new | 1 |
| 2 (1) |  | Pirates of the Caribbean: The Curse of the Black Pearl (2003) | £1,153,481 | £1,872,811 | £23,332,462 | -25% | 6 |
| 3 (2) |  | American Pie: The Wedding (2003) | £664,224 | £1,173,051 | £15,494,385 | -33% | 5 |
| 4 (new) |  | Tears of the Sun (2003) | £406,324 | £406,324 | £406,324 | new | 1 |
| 5 (3) |  | Jeepers Creepers 2 (2003) | £378,792 | £654,651 | £2,957,086 | -40% | 3 |
| 6 (4) |  | Lara Croft: Tomb Raider - The Cradle of Life (2003) | £264,873 | £440,719 | £4,927,055 | -40% | 4 |
| 7 (7) |  | The Lizzie Mcguire Movie (2003) | £192,571 | £234,241 | £1,290,270 | -31% | 3 |
| 8 (6) |  | Terminator 3: Rise of the Machines (2003) | £179,877 | £342,031 | £18,622,818 | -42% | 7 |
| 9 (9) |  | Spy Kids 3D: Game Over (2003) | £173,712 | £207,736 | £6,483,290 | -28% | 7 |
| 10 (new) |  | The Order (2003) | £161,779 | £161,779 | £161,779 | new | 1 |
| 11 (5) |  | Blackball (2003) | £159,917 | £356,946 | £733,179 | -57% | 2 |
| 12 (10) |  | interMission (2003) | £153,694 | £304,511 | £803,074 | -20% | 3 |
| 13 (new) |  | Spirited Away (2001) | £152,504 | £152,504 | £152,504 | new | 1 |
| 14 (8) | | Camp (2003) | £126,514 | £224,786 | £469,969 | -48% | 2 |
| 15 (13) |  | The Man Who Sued God (2003) | £89,522 | £191,456 | £973,825 | -46% | 4 |