Domestic Box Office For July 1980
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Cheech and Chong's Next Movie | $41,675,194 | 814 | $5,262,963 | 12.6% | 814 | Jul 18 | - | Universal Pictures |
| 2 | Caddyshack | $39,846,344 | 656 | $3,142,689 | 7.9% | 656 | Jul 25 | - | Warner Bros. |
| 3 | My Bodyguard | $22,482,952 | 477 | $178,641 | 0.8% | 39 | Jul 11 | - | Twentieth Century Fox |
| 4 | Honeysuckle Rose | $17,815,212 | 826 | $2,189,966 | 12.3% | 826 | Jul 18 | - | Warner Bros. |
| 5 | Used Cars | $11,715,321 | - | - | - | - | Jul 18 | - | Columbia Pictures |
| 6 | The Last Flight of Noah's Ark | $11,000,000 | - | - | - | - | Jul 27 | - | Walt Disney Studios Motion Pictures |
| 7 | The Big Red One | $7,206,220 | - | - | - | - | Jul 18 | - | Metro-Goldwyn-Mayer (MGM) |
| 8 | Oh Heavenly Dog | $6,216,067 | 114 | $323,320 | 5.2% | 114 | Jul 11 | - | Twentieth Century Fox |
