| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | The Waterboy (1999) | £887,245 | £887,245 | £887,245 | new | 1 |
| 2 (1) |  | 8mm (1999) | £378,173 | £677,103 | £1,410,638 | -48% | 2 |
| 3 (2) |  | The Faculty (1999) | £364,054 | £577,579 | £3,748,032 | -43% | 4 |
| 4 (new) |  | eXistenZ (1999) | £362,864 | £362,864 | £362,864 | new | 1 |
| 5 (3) |  | Message In a Bottle (1999) | £347,849 | £642,748 | £1,222,745 | -40% | 2 |
| 6 (5) |  | An Ideal Husband (1999) | £260,003 | £463,115 | £1,646,009 | -37% | 3 |
| 7 (4) |  | The Rugrats Movie (1998) | £247,876 | £317,467 | £11,518,429 | -47% | 6 |
| 8 (6) |  | Waking Ned Devine (1999) | £190,567 | £357,702 | £6,258,284 | -50% | 7 |
| 9 (7) |  | Shakespeare In Love (1999) | £111,333 | £231,284 | £19,945,709 | -54% | 14 |
| 10 (9) |  | Mighty Joe Young (1999) | £94,880 | £121,549 | £3,695,228 | -53% | 6 |
| 11 (new) |  | In Dreams (1999) | £91,172 | £91,172 | £91,172 | new | 1 |
| 12 (8) |  | Payback (1999) | £91,056 | £185,943 | £4,606,541 | -57% | 6 |
| 13 (new) | | Dangerous Beauty (1999) | £59,685 | £59,685 | £59,685 | new | 1 |
| 14 (new) | | At First Sight (1999) | £55,402 | £55,402 | £55,402 | new | 1 |
| 15 (14) | | Tea With Mussolini (1999) | £51,169 | £114,476 | £803,316 | -32% | 5 |