UK Weekend Box Office
UK Box Office 8th May, 1981
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) |  | Superman II (1980) | £744,791 | £1,042,707 | £5,840,572 | -15% | 5 |
| 2 (2) |  | Tess (1981) | £88,281 | £119,179 | £1,692,633 | -42% | 5 |
| 3 (3) | Popeye (1981) | £63,718 | £86,019 | £1,993,637 | -47% | 5 | |
| 4 (4) |  | 9 to 5 (1980) | £34,397 | £44,716 | £2,538,959 | -47% | 7 |