| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (6) |  | Buster (1988) | £1,035,954 | £1,450,336 | £1,784,095 | 93% | 5 |
| 2 (new) |  | A Fish Called Wanda (1988) | £1,018,700 | £1,018,700 | £1,018,700 | new | 1 |
| 3 (1) |  | Good Morning Vietnam (1988) | £567,978 | £823,568 | £2,593,340 | -23% | 3 |
| 4 (2) |  | Midnight Run (1988) | £282,110 | £366,743 | £1,072,017 | -60% | 2 |
| 5 (3) |  | The Running Man (1988) | £87,075 | £113,198 | £1,371,118 | -47% | 4 |
| 6 (4) |  | Distant Voices, Still Lives (1988) | £59,427 | £77,255 | £494,429 | -62% | 3 |
| 7 (5) |  | Poltergeist III (1988) | £43,093 | £58,176 | £545,710 | -41% | 4 |
| 8 (8) |  | Big Business (1988) | £17,940 | £26,013 | £971,948 | -9% | 7 |
| 9 (7) |  | Beetlejuice (1988) | £14,718 | £19,869 | £2,330,046 | -44% | 9 |
| 10 (10) |  | Coming to America (1988) | £10,891 | £15,792 | £3,458,599 | -27% | 11 |
| 11 (9) |  | Rambo III (1988) | £7,191 | £9,708 | £1,651,035 | -55% | 8 |
| 12 (13) |  | The Last Temptation of Christ (1988) | £2,979 | £4,320 | £324,743 | -55% | 6 |
| 13 (14) |  | Police Academy 5: Assignment Miami Beach (1988) | £1,007 | £1,410 | £2,896,320 | -50% | 14 |