1980 Monthly Box Office
Data as of May 6, 2:55 PDT
| Month | Cumulative Gross | % of Year | Releases | Average | #1 Release | Gross | % of Total |
|---|---|---|---|---|---|---|---|
| December | $518,909,580 | 31.6% | 12 | $43,242,465 | 9 to 5 | $103,290,500 | 19.9% |
| November | $8,823,890 | 0.5% | 4 | $2,205,972 | The Awakening | $5,686,592 | 64.4% |
| October | $135,744,433 | 8.3% | 10 | $13,574,443 | Private Benjamin | $69,847,348 | 51.5% |
| September | $148,149,670 | 9% | 10 | $14,814,967 | Star Wars: Episode V - The Empire Strikes Back | $63,504,102 | 42.9% |
| August | $125,082,602 | 7.6% | 8 | $15,635,325 | Smokey and the Bandit II | $66,132,626 | 52.9% |
| July | $164,098,879 | 10% | 6 | $27,349,813 | Star Wars: Episode V - The Empire Strikes Back | $58,290,861 | 35.5% |
| June | $192,766,091 | 11.7% | 7 | $27,538,013 | The Blues Brothers | $57,229,890 | 29.7% |
| May | $172,566,679 | 10.5% | 9 | $19,174,075 | The Shining | $44,017,374 | 25.5% |
| April | $22,656,887 | 1.4% | 4 | $5,664,221 | Kramer vs. Kramer | $15,006,000 | 66.2% |
| March | $52,292,406 | 3.2% | 8 | $6,536,550 | Kramer vs. Kramer | $26,396,000 | 50.5% |
| February | $70,333,516 | 4.3% | 7 | $10,047,645 | American Gigolo | $22,743,674 | 32.3% |
| January | $30,976,138 | 1.9% | 4 | $7,744,034 | Kramer vs. Kramer | $25,722,516 | 83% |
