UK Box Office 18th May, 1979
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) |  | The Warriors (1979) | £157,539 | £228,432 | £590,772 | -57% | 2 |
| 2 (2) |  | The Kentucky Fried Movie (1979) | £87,269 | £126,540 | £619,573 | -43% | 3 |
| 3 (3) |  | Battlestar Galactica (1979) | £17,190 | £23,207 | £1,253,968 | -50% | 6 |