| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | The Nun | $5,295,514 | - | 548 | - | $9,663 | $5,295,514 | 1 | Warner Bros. | true | false |
| 2 | 1 | Christopher Robin | $1,139,214 | -25.1% | 602 | -44 | $1,892 | $15,899,737 | 4 | Walt Disney Pictures | false | false |
| 3 | 3 | BlacKkKlansman | $1,009,821 | -14% | 469 | +98 | $2,153 | $6,066,540 | 3 | Universal Pictures International (UPI) | false | false |
| 4 | 2 | Mamma Mia! Here We Go Again | $936,980 | -25.8% | 554 | -52 | $1,691 | $82,471,432 | 8 | Universal Pictures International (UPI) | false | false |
| 5 | 4 | The Meg | $790,972 | -30.7% | 475 | -38 | $1,665 | $19,480,284 | 5 | Warner Bros. | false | false |
| 6 | 6 | Incredibles 2 | $784,504 | -20.7% | 537 | -21 | $1,460 | $70,844,780 | 9 | Walt Disney Pictures | false | false |
| 7 | 5 | Searching | $562,140 | -43.3% | 399 | -2 | $1,408 | $2,108,973 | 2 | Sony Pictures Releasing | false | false |
| 8 | 9 | Hotel Transylvania 3: Summer Vacation | $554,888 | -22.9% | 514 | -37 | $1,079 | $23,625,271 | 7 | Sony Pictures Releasing | false | false |
| 9 | 8 | The Equalizer 2 | $520,692 | -35.7% | 340 | -103 | $1,531 | $8,826,920 | 4 | Sony Pictures Releasing | false | false |
| 10 | - | Black '47 | $515,330 | - | 103 | - | $5,003 | $515,330 | 1 | Altitude Film Entertainment | true | false |
| 11 | 10 | Mission: Impossible - Fallout | $498,929 | -26.2% | 303 | -59 | $1,646 | $30,839,977 | 7 | Paramount Pictures International | false | false |
| 12 | 11 | Ant-Man and the Wasp | $458,193 | -28.2% | 355 | -56 | $1,290 | $22,353,263 | 6 | Walt Disney Pictures | false | false |
| 13 | - | American Animals | $449,006 | - | 160 | - | $2,806 | $449,006 | 1 | STX International | true | false |
| 14 | 13 | The Children Act | $382,265 | -17.3% | 379 | +72 | $1,008 | $2,620,356 | 3 | Entertainment One | false | false |
| 15 | 12 | Yardie | $254,339 | -55.2% | 225 | - | $1,130 | $1,095,868 | 2 | StudioCanal | false | false |
| 16 | - | Cold War 2018 Re-release | $194,546 | - | 77 | - | $2,526 | $688,259 | 2 | Curzon Film Distributors | false | false |
| 17 | - | The Miseducation of Cameron Post | $184,773 | - | 98 | - | $1,885 | $184,773 | 1 | Vertigo Films | true | false |
| 18 | 16 | The Festival | $140,819 | -45.6% | 159 | -101 | $885 | $4,312,659 | 4 | Entertainment Film Distributors | false | false |
| 19 | 14 | The Spy Who Dumped Me | $123,868 | -58.6% | 217 | -206 | $570 | $2,875,476 | 3 | Lionsgate Films | false | false |
| 20 | - | Mission of Honor | $80,707 | - | 66 | - | $1,222 | $80,707 | 1 | Kaleidoscope | true | false |
| 21 | - | The Seagull | $57,425 | - | 63 | - | $911 | $57,425 | 1 | Entertainment One | true | false |
| 22 | - | Slender Man | $45,230 | - | 132 | - | $342 | $1,312,954 | 3 | Sony Pictures Releasing | false | false |
| 23 | - | The Hows of Us | $30,862 | - | 3 | - | $10,287 | $30,862 | 1 | ABS-CBN Film Productions | true | false |
| 24 | - | Puzzle | $30,449 | - | 86 | - | $354 | $30,449 | 1 | Sony Pictures Releasing | true | false |
| 25 | 51 | Show Dogs | $22,536 | +3,833% | 116 | +112 | $194 | $4,671,486 | 16 | Entertainment One | false | false |
| 26 | - | Imaikkaa Nodigal | $17,035 | - | 8 | - | $2,129 | $17,035 | 1 | Murugan Talkies | true | false |
| 27 | - | Alpha | $16,897 | - | 75 | - | $225 | $690,827 | 3 | Sony Pictures Releasing | false | false |
| 28 | - | Final Score | $12,851 | - | 52 | - | $247 | $12,851 | 1 | - | true | false |
| 29 | 21 | Jurassic World: Fallen Kingdom | $11,078 | -65.1% | 31 | -34 | $357 | $55,577,098 | 14 | Universal Pictures International (UPI) | false | false |
| 30 | - | Under the Wire | $10,065 | - | 6 | - | $1,677 | $10,065 | 1 | Periscoop Film | true | false |
| 31 | 29 | Thomas & Friends: Big World! Big Adventures! | $6,091 | +14% | 62 | -7 | $98 | $631,817 | 8 | National Amusements | false | false |
| 32 | 28 | Distant Voices, Still Lives 2018 Re-release | $5,707 | -34.4% | 6 | - | $951 | $20,476 | 2 | British Film Institute (BFI) | false | false |
| 33 | 27 | Sherlock Gnomes | $4,569 | -50.5% | 35 | -20 | $130 | $12,151,675 | 18 | Paramount Pictures International | false | false |
| 34 | 32 | Sgt. Stubby: An American Hero | $3,834 | -16.1% | 22 | -16 | $174 | $141,786 | 5 | - | false | false |
| 35 | 40 | The Escape | $3,440 | +114.6% | 7 | +2 | $491 | $179,933 | 6 | Vertigo Films | false | false |
| 36 | 30 | Swimming with Men | $2,971 | -41.4% | 5 | -5 | $594 | $555,847 | 10 | Vertigo Films | false | false |
| 37 | 39 | The Bookshop | $2,836 | +62.4% | 3 | -2 | $945 | $523,060 | 11 | Vertigo Films | false | false |
| 38 | 34 | The More You Ignore Me | $2,465 | +0.5% | 3 | -2 | $821 | $77,618 | 10 | Entertainment Film Distributors | false | false |
| 39 | 33 | Apostasy | $2,004 | -48.5% | 4 | -4 | $501 | $417,677 | 7 | Curzon Film Distributors | false | false |
| 40 | 37 | Spitfire | $1,427 | -34% | 2 | -2 | $713 | $333,603 | 8 | Altitude Film Entertainment | false | false |
| 41 | 46 | Patrick the Pug | $1,285 | +6.6% | 11 | +8 | $116 | $1,559,025 | 11 | Walt Disney Pictures | false | false |
| 42 | 22 | The Ballymurphy Precedent | $1,175 | -94.6% | 2 | -2 | $587 | $28,563 | 2 | Dartmouth Films | false | false |
| 43 | 47 | The Big Bad Fox and Other Tales | $1,164 | +4.6% | 41 | - | $28 | $46,519 | 6 | StudioCanal | false | false |
| 44 | 44 | The Happy Prince | $995 | -29.2% | 4 | +2 | $248 | $1,102,747 | 13 | Lionsgate Films | false | false |
| 45 | 36 | Leave No Trace | $853 | -60.7% | 2 | -3 | $426 | $547,195 | 11 | Sony Pictures Releasing | false | false |
| 46 | - | Pin Cushion | $828 | - | 5 | - | $165 | $67,284 | 9 | - | false | false |
| 47 | 55 | Peter Rabbit | $726 | +71.6% | 8 | - | $90 | $53,074,127 | 26 | Sony Pictures Releasing | false | false |
| 48 | - | One Note at a Time | $645 | - | 1 | - | $645 | $4,355 | 3 | Munro Films | false | false |
| 49 | - | Oceans: Our Blue Planet | $425 | - | 1 | - | $425 | $425 | 1 | Independent Films | true | false |
| 50 | 25 | The Man from Mo'Wax | $361 | -97.9% | 1 | -9 | $361 | $22,829 | 2 | Trafalgar Studios | false | false |
| 51 | 53 | Maurice 2018 Re-release | $341 | -31.5% | 2 | +1 | $170 | $49,170 | 7 | British Film Institute (BFI) | false | false |
| 52 | 43 | The Eyes of Orson Welles | $260 | -81.8% | 2 | -6 | $130 | $42,375 | 4 | Periscoop Film | false | false |
| 53 | 38 | Yellow Submarine | $216 | -88% | 2 | -5 | $108 | $277,803 | 10 | Picturehouse Entertainment | false | false |
| 54 | 31 | The Guernsey Literary and Potato Peel Pie Society | $150 | -96.9% | 1 | -498 | $150 | $7,627,908 | 21 | StudioCanal | false | false |
| 55 | - | Avengers: Infinity War | $142 | - | - | - | - | $96,640,343 | 20 | Walt Disney Pictures | false | false |
| 56 | 52 | Sicario: Day of the Soldado | $131 | -74% | 1 | - | $131 | $2,842,132 | 11 | Lionsgate Films | false | false |
| 57 | 56 | Hotel Artemis | $59 | -50% | - | - | - | $949,067 | 8 | Warner Bros. | false | false |
| 58 | 49 | Whitney | $54 | -92% | 1 | - | $54 | $586,762 | 10 | Altitude Film Entertainment | false | false |
| 59 | 57 | A Prayer Before Dawn | $10 | -89.2% | 1 | - | $10 | $112,503 | 8 | Altitude Film Entertainment | false | false |
