Domestic Box Office For April 1980
| Rank | Release | Gross | Theaters | Total Gross | Release Date | Distributor |
|---|---|---|---|---|---|---|
| 4 | Where the Buffalo Roam | $1,991,124 | 464 | $6,659,377 | Apr 25 | Universal Pictures |
| 2 | North Sea Hijack | $2,993,772 | 398 | $2,993,772 | Apr 18 | Universal Pictures |
| 3 | When Time Ran Out... | $2,665,991 | 677 | $3,763,988 | Mar 28 | Warner Bros. |
| 1 | Kramer vs. Kramer | $15,006,000 | 898 | $106,260,000 | Dec 19 | Columbia Pictures |
