Domestic Box Office For July 1987
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | La Bamba | $54,215,416 | 1,251 | $5,651,990 | 10.4% | 1,251 | Jul 24 | - | Columbia Pictures |
| 2 | RoboCop | $53,424,681 | 1,601 | $8,008,721 | 15% | 1,580 | Jul 17 | - | Orion Pictures |
| 3 | The Living Daylights | $51,185,897 | 1,728 | $11,051,284 | 21.6% | 1,728 | Jul 31 | - | United Artists |
| 4 | Snow White and the Seven Dwarfs 1987 Re-release | $46,594,212 | 1,729 | $7,514,749 | 16.1% | 1,729 | Jul 17 | - | Walt Disney Studios Motion Pictures |
| 5 | Summer School | $35,659,098 | 1,366 | $6,012,274 | 16.9% | 1,366 | Jul 24 | - | Paramount Pictures |
| 6 | Adventures in Babysitting | $34,368,475 | 1,148 | $2,901,297 | 8.4% | 1,126 | Jul 3 | - | Walt Disney Studios Motion Pictures |
| 7 | The Lost Boys | $32,222,567 | 1,249 | $5,236,318 | 16.3% | 1,027 | Jul 31 | - | Warner Bros. |
| 8 | Revenge of the Nerds II: Nerds in Paradise | $30,063,289 | 1,358 | $7,900,879 | 26.3% | 1,351 | Jul 10 | - | Twentieth Century Fox |
| 9 | Innerspace | $25,893,810 | 1,603 | $4,739,913 | 18.3% | 1,603 | Jul 3 | - | Warner Bros. |
| 10 | Jaws: The Revenge | $20,763,013 | 1,611 | $7,154,890 | 34.5% | 1,606 | Jul 17 | - | Universal Pictures |
| 11 | Superman IV: The Quest for Peace | $15,681,020 | 1,511 | $5,683,122 | 36.2% | 1,511 | Jul 24 | - | Warner Bros. |
| 12 | Maid to Order | $9,868,521 | 522 | $1,162,491 | 11.8% | 287 | Jul 31 | - | New Century |
| 13 | Wish You Were Here | $3,283,832 | 43 | $43,611 | 1.3% | 1 | Jul 24 | - | Atlantic Releasing Corporation |
| 14 | The Squeeze | $2,228,951 | 1,152 | $1,380,800 | 61.9% | 1,152 | Jul 10 | - | TriStar Pictures |
| 15 | The Whistle Blower | $1,500,000 | 62 | $30,035 | 2% | 1 | Jul 10 | - | Hemdale |
| 16 | Oviri | $583,800 | 16 | $39,712 | 6.8% | 4 | Jul 31 | - | International Film Marketing |
| 17 | White Water Summer | $300,859 | 105 | $122,934 | 40.9% | 105 | Jul 10 | Jul 23 | Columbia Pictures |
| 18 | Good Morning Babylon | $183,700 | 2 | $24,569 | 13.4% | 2 | Jul 17 | - | Vestron Pictures |
| 19 | Rita, Sue and Bob Too | $124,167 | 8 | $7,947 | 6.4% | 1 | Jul 17 | Sep 3 | Orion Classics |
| 20 | Ping Pong | $67,421 | 2 | $8,497 | 12.6% | 2 | Jul 17 | - | The Samuel Goldwyn Company |
| 21 | O.C. and Stiggs | $29,815 | 18 | $6,273 | 21% | 18 | Jul 10 | - | Metro-Goldwyn-Mayer (MGM) |
