Domestic Box Office For July 1986
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Aliens | $85,160,248 | 1,454 | $10,052,042 | 11.8% | 1,437 | Jul 18 | - | Twentieth Century Fox |
| 2 | About Last Night | $38,702,310 | 887 | $3,152,469 | 8.1% | 642 | Jul 4 | - | TriStar Pictures |
| 3 | The Great Mouse Detective | $25,336,794 | 1,198 | $3,220,225 | 12.7% | 1,138 | Jul 4 | - | Walt Disney Studios Motion Pictures |
| 4 | Heartburn | $25,314,189 | 850 | $5,783,079 | 22.8% | 843 | Jul 25 | - | Paramount Pictures |
| 5 | Flight of the Navigator | $18,564,613 | 1,024 | $3,115,097 | 16.8% | 952 | Jul 30 | - | Walt Disney Studios Motion Pictures |
| 6 | Psycho III | $14,481,606 | 1,408 | $3,238,400 | 22.4% | 1,408 | Jul 4 | - | Universal Pictures |
| 7 | Club Paradise | $12,308,521 | 1,186 | $4,152,296 | 33.7% | 1,172 | Jul 11 | - | Warner Bros. |
| 8 | Big Trouble in Little China | $11,100,000 | 1,092 | $2,723,211 | 24.5% | 1,053 | Jul 4 | - | Twentieth Century Fox |
| 9 | Under the Cherry Moon | $10,090,429 | 976 | $3,150,924 | 31.2% | 976 | Jul 4 | - | Warner Bros. |
| 10 | Haunted Honeymoon | $8,033,397 | 1,047 | $2,768,003 | 34.5% | 1,046 | Jul 25 | - | Orion Pictures |
| 11 | Maximum Overdrive | $7,433,663 | 1,198 | $3,205,644 | 43.1% | 1,198 | Jul 25 | - | De Laurentiis Entertainment Group (DEG) |
| 12 | Out of Bounds | $5,099,316 | 1,207 | $2,144,764 | 42.1% | 1,207 | Jul 25 | - | Columbia Pictures |
| 13 | Vamp | $4,941,117 | 1,104 | $2,187,458 | 44.3% | 1,104 | Jul 18 | - | New World Pictures |
| 14 | Pirates | $1,641,825 | 1,108 | $1,035,447 | 63.1% | 1,108 | Jul 18 | - | Cannon Film Distributors |
| 15 | The Girl in the Picture | $202,428 | - | - | - | - | Jul 9 | - | The Samuel Goldwyn Company |
