UK Box Office 20th October, 1978
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) |  | Grease (1978) | £121,990 | £176,886 | £3,845,415 | -41% | 6 |
| 2 (2) | The Driver (1978) | £83,709 | £121,378 | £690,596 | -50% | 3 | |
| 3 (3) |  | Foul Play (1978) | £10,353 | £15,012 | £775,958 | -50% | 6 |
| 4 (5) |  | Herbie Goes to Monte Carlo (1978) | £3,051 | £4,271 | £1,521,957 | -50% | 9 |