UK Weekend Box Office
UK Box Office 7th September, 1979
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (new) |  | Alien (1979) | £640,782 | £640,782 | £640,782 | new | 1 |
| 2 (1) |  | Moonraker () | £401,651 | £542,229 | £7,601,893 | -36% | 7 |
| 3 (2) |  | Manhattan () | £207,336 | £269,537 | £1,362,200 | -41% | 3 |
| 4 (3) |  | Porridge () | £90,154 | £126,216 | £1,607,437 | -35% | 5 |
| 5 (4) |  | The Lord of the Rings () | £200 | £290 | £1,183,164 | -80% | 10 |