UK Box Office 6th October, 1978
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) |  | Grease (1978) | £352,551 | £475,944 | £3,378,193 | -41% | 4 |
| 2 (new) | The Driver (1978) | £334,834 | £334,834 | £334,834 | new | 1 | |
| 3 (2) |  | Foul Play (1978) | £41,412 | £53,836 | £732,993 | -50% | 4 |
| 4 (3) | The Silent Partner (1978) | £18,715 | £25,265 | £674,665 | -50% | 5 | |
| 5 (4) |  | Herbie Goes to Monte Carlo (1978) | £12,202 | £17,083 | £1,508,840 | -60% | 7 |
| 6 (5) | Must Wear Tights (1978) | £8,831 | £12,805 | £31,350 | -52% | 2 | |
| 7 (6) | Convoy (1978) | £5,160 | £7,482 | £782,915 | -50% | 7 | |
| 8 (7) | The Legacy (1978) | £2,379 | £3,331 | £373,467 | -58% | 6 | |