| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) | ![]() | City of Angels (1998) | £674,705 | £910,852 | £2,052,506 | -41% | 2 |
| 2 (2) | ![]() | The Wedding Singer (1998) | £530,938 | £716,766 | £3,893,787 | -12% | 4 |
| 3 (new) | ![]() | Mimic (1998) | £487,821 | £487,821 | £487,821 | new | 1 |
| 4 (new) | ![]() | The Object of My Affection (1998) | £339,672 | £339,672 | £339,672 | new | 1 |
| 5 (3) | ![]() | Sliding Doors (1998) | £318,376 | £461,645 | £7,984,436 | -4% | 9 |
| 6 (4) | ![]() | Deep Impact (1998) | £222,882 | £300,891 | £7,693,813 | -15% | 7 |
| 7 (7) | ![]() | Titanic (1997) | £123,716 | £167,017 | £64,265,784 | 29% | 23 |
| 8 (6) | ![]() | The Exorcist (1973) Rerelease | £105,010 | £136,513 | £288,227 | -31% | 47 |
| 9 (5) | ![]() | The Apostle (1998) | £103,481 | £150,047 | £755,411 | -44% | 3 |
| 10 (re) | ![]() | Barneys Great Adventure (1998) | £101,260 | £101,260 | £158,771 | re | 1 |
| 11 (12) | ![]() | Mousehunt (1998) | £74,205 | £107,597 | £5,458,433 | 37% | 13 |
| 12 (new) | ![]() | Girls Night (1998) | £59,104 | £59,104 | £59,104 | new | 1 |
| 13 (9) | ![]() | Wishmaster (1997) | £58,357 | £78,782 | £978,028 | -31% | 5 |
| 14 (8) | ![]() | The General (1998) | £58,223 | £78,601 | £967,321 | -31% | 5 |
| 15 (10) | ![]() | Scream 2 (1998) | £53,085 | £74,319 | £6,545,638 | -31% | 9 |