| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Mission: Impossible - Fallout | $428,552 | - | 132 | - | $3,246 | $428,552 | 1 | United International Pictures | true | false |
| 2 | 1 | Mamma Mia! Here We Go Again | $358,001 | -23.9% | 105 | +1 | $3,409 | $1,006,681 | 2 | Universal Pictures International (UPI) | false | false |
| 3 | 2 | Skyscraper | $129,027 | -26.6% | 102 | -16 | $1,264 | $748,264 | 3 | United International Pictures | false | false |
| 4 | 4 | Incredibles 2 | $97,631 | -12.6% | 90 | -12 | $1,084 | $3,709,735 | 7 | Ster-Kinekor Pictures | false | false |
| 5 | 3 | Ant-Man and the Wasp | $91,444 | -34.1% | 89 | -32 | $1,027 | $1,251,130 | 4 | Ster-Kinekor Pictures | false | false |
| 6 | - | Broken Promises 4-Ever | $78,177 | - | 15 | - | $5,211 | $78,177 | 1 | Indigenous Film Distribution | true | false |
| 7 | 5 | Ocean's Eight | $56,796 | -32.5% | 71 | -10 | $799 | $1,545,205 | 6 | Times Media Films | false | false |
| 8 | - | Adrift | $46,973 | - | 41 | - | $1,145 | $46,973 | 1 | Times Media Films | true | false |
| 9 | - | Teen Titans GO! To the Movies | $38,097 | - | 30 | - | $1,269 | $38,097 | 1 | Times Media Films | true | false |
| 10 | 6 | Jurassic World: Fallen Kingdom | $22,391 | -54.5% | 35 | -30 | $639 | $2,433,309 | 8 | United International Pictures | false | false |
| 11 | 7 | Book Club | $18,975 | -32.9% | 22 | -10 | $862 | $340,647 | 5 | Ster-Kinekor Pictures | false | false |
| 12 | - | The Snow Queen 3: Fire and Ice | $14,555 | - | 25 | - | $582 | $14,555 | 1 | Indigenous Film Distribution | true | false |
| 13 | 8 | Show Dogs | $12,901 | -46.8% | 31 | -25 | $416 | $296,317 | 4 | Ster-Kinekor Pictures | false | false |
| 14 | 9 | Breaking In | $12,237 | -33% | 17 | -10 | $719 | $691,356 | 9 | Universal Pictures International (UPI) | false | false |
| 15 | 11 | Tag | $3,190 | -69.9% | 7 | -12 | $455 | $196,343 | 5 | Times Media Films | false | false |
| 16 | 12 | Deadpool 2 | $3,136 | -59.5% | 3 | -9 | $1,045 | $2,066,716 | 11 | 20th Century Fox International | false | false |
| 17 | 17 | Acrimony | $2,947 | +17.7% | 5 | -1 | $589 | $1,851,141 | 18 | Ster-Kinekor Pictures | false | false |
| 18 | 10 | Duck Duck Goose | $2,143 | -85.3% | 7 | -54 | $306 | $298,139 | 5 | Times Media Films | false | false |
| 19 | 14 | Avengers: Infinity War | $1,767 | -53.5% | 3 | -2 | $589 | $5,552,131 | 14 | Ster-Kinekor Pictures | false | false |
| 20 | 13 | Thys & Trix | $1,729 | -64.5% | 5 | -11 | $345 | $207,929 | 6 | Ster-Kinekor Pictures | false | false |
| 21 | 16 | American Animals | $1,640 | -50.2% | 4 | -1 | $410 | $29,866 | 4 | Ster-Kinekor Pictures | false | false |
| 22 | - | Room Hates | $1,449 | - | 4 | - | $362 | $1,449 | 1 | Times Media Films | true | false |
| 23 | 18 | Isle of Dogs | $1,317 | -38.4% | 3 | - | $439 | $33,827 | 6 | 20th Century Fox International | false | false |
