| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | South Park: Bigger, Longer and Uncut (1999) | £813,613 | £2,033,916 | £3,530,497 | -46% | 2 |
| 2 (2) |  | Star Wars Episode I: The Phantom Menace (1999) | £678,759 | £1,701,670 | £47,077,290 | -34% | 8 |
| 3 (3) |  | Never Been Kissed (1999) | £591,945 | £1,353,210 | £2,178,378 | -28% | 2 |
| 4 (4) |  | Austin Powers: The Spy Who Shagged Me (1999) | £531,909 | £1,293,875 | £24,155,929 | -35% | 6 |
| 5 (5) |  | The Thomas Crown Affair (1999) | £501,214 | £1,094,026 | £3,457,990 | -28% | 3 |
| 6 (new) |  | Go (1999) | £481,471 | £481,471 | £481,471 | new | 1 |
| 7 (6) |  | Mickey Blue Eyes (1999) | £468,858 | £1,014,618 | £3,453,766 | -30% | 3 |
| 8 (8) |  | Life (1999) | £251,312 | £531,477 | £899,283 | -32% | 2 |
| 9 (new) |  | The 13th Warrior (1999) | £215,046 | £215,046 | £215,046 | new | 1 |
| 10 (7) |  | Wild Wild West (1999) | £207,564 | £563,919 | £6,502,434 | -46% | 4 |
| 11 (9) |  | Notting Hill (1999) | £157,218 | £409,039 | £30,018,871 | -42% | 16 |
| 12 (11) |  | All About My Mother (1999) | £90,442 | £185,789 | £285,322 | -9% | 2 |
| 13 (10) |  | The Mummy (1999) | £47,530 | £237,981 | £17,439,339 | -62% | 11 |
| 14 (12) | | Baadshah (1999) | £45,183 | £120,182 | £217,418 | -54% | 2 |
| 15 (13) |  | Doug's 1st Movie (1999) | £45,110 | £127,200 | £1,048,577 | -36% | 5 |