UK Box Office 20th June, 1980
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (1) |  | Star Wars: The Empire Strikes Back (1980) | £1,022,538 | £1,329,299 | £6,839,057 | -7% | 5 |
| 2 (2) |  | Friday the 13th (1980) | £404,908 | £566,871 | £1,295,705 | -44% | 2 |
| 3 (3) |  | The Final Countdown (1980) | £34,683 | £50,290 | £626,026 | -50% | 4 |
| 4 (4) |  | American Gigolo (1980) | £10,000 | £13,500 | £1,055,169 | -51% | 7 |
| 5 (5) |  | 1941 (1979) | £2,000 | £2,800 | £1,346,227 | -60% | 9 |