| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Rush Hour (1998) | £1,179,123 | £1,933,148 | £3,742,241 | -35% | 2 |
| 2 (new) |  | The Mask of Zorro (1998) | £889,829 | £889,829 | £889,829 | new | 1 |
| 3 (new) |  | The Parent Trap (1998) | £496,161 | £496,161 | £496,161 | new | 1 |
| 4 (2) |  | Babe: Pig In the City (1998) | £428,703 | £642,655 | £1,255,626 | -30% | 2 |
| 5 (3) |  | Antz (1998) | £333,484 | £476,696 | £8,277,972 | -37% | 6 |
| 6 (4) |  | Out of Sight (1998) | £294,577 | £557,272 | £2,362,800 | -41% | 3 |
| 7 (5) |  | Blade (1998) | £216,020 | £369,657 | £5,572,090 | -34% | 5 |
| 8 (6) |  | The Negotiator (1998) | £153,717 | £275,502 | £1,164,845 | -36% | 3 |
| 9 (7) |  | Ronin (1998) | £109,283 | £230,580 | £2,510,723 | -52% | 4 |
| 10 (8) |  | Small Soldiers (1998) | £83,836 | £99,696 | £5,942,727 | -40% | 8 |
| 11 (9) |  | There's Something About Mary (1998) | £78,564 | £141,653 | £15,409,962 | -36% | 12 |
| 12 (10) |  | Mulan (1998) | £50,213 | £58,683 | £8,695,072 | -39% | 10 |
| 13 (re) |  | Lock, Stock & Two Smoking Barrels (1998) | £49,598 | £49,598 | £11,520,069 | RE | 13 |
| 14 (13) |  | Kuch Kuch Hota Hai (1998) | £31,966 | £47,660 | £1,350,256 | -27% | 7 |
| 15 (15) |  | Elizabeth (1998) | £2,382 | £2,382 | £5,310,506 | -63% | 11 |