Domestic Box Office For May 1978
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | The End | $44,917,151 | - | - | - | - | May 10 | - | United Artists |
| 2 | The Buddy Holly Story | $14,363,400 | - | - | - | - | May 19 | - | Columbia Pictures |
| 3 | Nunzio | $52,195 | - | - | - | - | May 12 | - | Universal Pictures |
