UK Weekend Box Office
UK Box Office 1st May, 1981
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) |  | Superman II (1980) | £873,134 | £1,135,074 | £4,797,865 | -5% | 4 |
| 2 (2) |  | Tess (1981) | £151,563 | £219,766 | £1,573,454 | -60% | 4 |
| 3 (3) | Popeye (1981) | £121,065 | £175,544 | £1,907,618 | -47% | 4 | |
| 4 (4) |  | 9 to 5 (1980) | £65,354 | £84,960 | £2,494,243 | -47% | 6 |
| 5 (5) |  | Private Benjamin (1980) | £3,125 | £4,375 | £2,219,240 | -91% | 8 |