| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | 1 | Girls Trip | $141,067 | -22.5% | 72 | +13 | $1,959 | $491,258 | 2 | United International Pictures | false | false |
| 2 | 2 | Baby Driver | $127,081 | -26.6% | 94 | +8 | $1,351 | $440,659 | 2 | Sony Pictures Releasing | false | false |
| 3 | - | Son of Bigfoot | $110,186 | - | 98 | - | $1,124 | $110,186 | 1 | Ster-Kinekor Pictures | true | false |
| 4 | 3 | Dunkirk | $92,159 | -25.5% | 69 | -2 | $1,335 | $634,183 | 3 | Times Media Films | false | false |
| 5 | 4 | Despicable Me 3 | $56,016 | -40.7% | 74 | -18 | $756 | $3,237,603 | 7 | United International Pictures | false | false |
| 6 | - | Snatched | $52,471 | - | 47 | - | $1,116 | $52,471 | 1 | Times Media Films | true | false |
| 7 | 5 | Spider-Man: Homecoming | $49,295 | -39.3% | 70 | -17 | $704 | $2,183,059 | 6 | Sony Pictures Releasing | false | false |
| 8 | 6 | Captain Underpants: The First Epic Movie | $32,120 | -44.3% | 60 | -24 | $535 | $392,217 | 4 | 20th Century Fox International | false | false |
| 9 | 9 | Krotoa | $32,032 | -6% | 30 | +5 | $1,067 | $102,858 | 2 | Ster-Kinekor Pictures | false | false |
| 10 | - | The Lost City of Z | $19,851 | - | 25 | - | $794 | $19,851 | 1 | Ster-Kinekor Pictures | true | false |
| 11 | 7 | Valerian and the City of a Thousand Planets | $19,131 | -54.4% | 40 | -27 | $478 | $442,037 | 4 | Times Media Films | false | false |
| 12 | 8 | War for the Planet of the Apes | $17,016 | -50.8% | 30 | -25 | $567 | $671,994 | 5 | 20th Century Fox International | false | false |
| 13 | 10 | Viceroy's House | $9,998 | -35.2% | 14 | -14 | $714 | $77,292 | 3 | United International Pictures | false | false |
| 14 | - | My Cousin Rachel | $9,768 | - | 9 | - | $1,085 | $9,768 | 1 | Times Media Films | true | false |
| 15 | 11 | Baywatch | $7,488 | -49.3% | 15 | -6 | $499 | $1,480,858 | 11 | Paramount Pictures International | false | false |
| 16 | 12 | Transformers: The Last Knight | $7,293 | -48% | 16 | -6 | $455 | $1,530,935 | 8 | United International Pictures | false | false |
| 17 | 14 | The Mummy | $6,112 | -23.8% | 10 | -2 | $611 | $1,071,918 | 10 | United International Pictures | false | false |
| 18 | 15 | Mubarakan | $3,644 | -52.4% | 9 | -2 | $404 | $42,993 | 3 | Sony Pictures Releasing | false | false |
| 19 | 17 | Paris Can Wait | $3,507 | -34.7% | 6 | -2 | $584 | $133,445 | 7 | Times Media Films | false | false |
| 20 | - | Below Her Mouth | $3,158 | - | 5 | - | $631 | $3,158 | 1 | United International Pictures | true | false |
| 21 | 13 | Van der Merwe | $2,344 | -73.1% | 11 | -34 | $213 | $44,697 | 3 | Ster-Kinekor Pictures | false | false |
| 22 | 20 | Everything, Everything | $2,071 | -52% | 5 | -1 | $414 | $249,403 | 8 | Times Media Films | false | false |
| 23 | 19 | Brimstone | $1,995 | -55.7% | 12 | - | $166 | $10,984 | 2 | Ster-Kinekor Pictures | false | false |
| 24 | - | Rough Night | $1,046 | - | 3 | - | $348 | $338,152 | 9 | Sony Pictures Releasing | false | false |
| 25 | 23 | Nul is nie niks nie | $526 | -48.5% | 2 | -3 | $263 | $109,117 | 6 | Indigenous Film Distribution | false | false |
| 26 | 24 | The Red Turtle | $330 | -7.3% | 1 | - | $330 | $6,365 | 5 | United International Pictures | false | false |
