UK Weekend Box Office
UK Box Office 17th April, 1981
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) |  | Superman II () | £1,009,166 | £1,362,374 | £2,370,707 | 0% | 2 |
| 2 (4) | Popeye () | £437,044 | £568,157 | £1,398,541 | 2% | 2 | |
| 3 (3) |  | Tess (1981) | £331,250 | £430,625 | £862,125 | -23% | 2 |
| 4 (2) |  | 9 to 5 (1980) | £235,926 | £318,500 | £2,241,651 | -47% | 4 |
| 5 (5) |  | Private Benjamin () | £64,648 | £87,275 | £2,168,459 | -37% | 6 |
| 6 (6) |  | Ordinary People (1981) | £14,263 | £19,255 | £1,721,507 | -50% | 7 |