UK Box Office 4th September, 1981
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (new) |  | Stripes (1981) | £614,138 | £614,138 | £614,138 | new | 1 |
| 2 (1) |  | The Watcher In the Woods (1981) | £141,667 | £191,250 | £274,583 | 41% | 2 |
| 3 (2) |  | Raiders of the Lost Ark (1981) | £55,807 | £78,130 | £2,629,913 | -29% | 6 |
| 4 (3) |  | Arthur (1981) | £30,288 | £39,374 | £1,982,779 | -53% | 8 |
| 5 (4) |  | For Your Eyes Only (1981) | £14,363 | £19,390 | £5,993,937 | -44% | 11 |