UK Box Office 26th December, 1980
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) |  | Flash Gordon (1980) | £995,783 | £1,443,885 | £3,356,809 | -9% | 3 |
| 2 (2) |  | The Blue Lagoon (1980) | £409,798 | £532,737 | £1,012,281 | -15% | 2 |
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) | | Flash Gordon (1980) | £995,783 | £1,443,885 | £3,356,809 | -9% | 3 |
| 2 (2) | | The Blue Lagoon (1980) | £409,798 | £532,737 | £1,012,281 | -15% | 2 |