Domestic Box Office For April 2021
Wide releases are those released in at least 600 theaters.
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Demon Slayer: Kimetsu no Yaiba - The Movie: Mugen Train | $49,505,008 | 2,087 | $21,234,994 | 42.9% | 1,614 | Apr 23 | - | FUNimation Entertainment |
| 2 | Mortal Kombat | $42,326,031 | 3,114 | $23,302,503 | 55.1% | 3,073 | Apr 23 | - | Warner Bros. |
| 3 | The Unholy | $15,532,137 | 2,057 | $3,153,456 | 20.3% | 1,850 | Apr 2 | - | Screen Gems |
| 4 | Separation | $4,509,143 | 1,911 | $1,800,162 | 39.9% | 1,751 | Apr 30 | - | Open Road Films (II) |
| 5 | Voyagers | $3,149,935 | 1,996 | $1,379,988 | 43.8% | 1,972 | Apr 9 | - | Lionsgate |
