Top 20 Summer Openings
This table lists the 20 biggest opening weekend grosses of the summer of 1998. All figures are three-day weekends except for Godzilla which is a four-day holiday gross. The Friday-to-Sunday portion of Godzilla's opening was $44M - still enough to lead the list. The theater and per-theater average figures are for the opening weekend of the movie.
| # | Title | Release | Total ($M) | Opening ($M) | Theaters | AVG ($) | Distributor |
| 1 | Godzilla | May 20 | 137 | 55.7 | 3310 | 16836 | Sony |
| 2 | Deep Impact | May 8 | 141 | 41.2 | 3156 | 13039 | Paramount |
| 3 | Armageddon | Jul 1 | 202 | 36.1 | 3127 | 11541 | Buena Vista |
| 4 | Lethal Weapon 4 | Jul 10 | 131 | 34.0 | 3117 | 10923 | Warner Bros. |
| 5 | The Truman Show | Jun 5 | 127 | 31.5 | 2315 | 13625 | Paramount |
| 6 | Saving Private Ryan | Jul 24 | 200 | 30.6 | 2463 | 12414 | DreamWorks |
| 7 | The X Files | Jun 19 | 86 | 30.1 | 2629 | 11464 | Fox |
| 8 | Doctor Dolittle | Jun 26 | 145 | 29.0 | 2777 | 10448 | Fox |
| 9 | Mulan | Jun 19 | 120 | 22.7 | 2888 | 7876 | Buena Vista |
| 10 | The Mask Of Zorro | Jul 17 | 94 | 22.5 | 2515 | 8957 | Sony |
| 11 | Blade | Aug 21 | 70 | 17.1 | 2322 | 7353 | New Line |
| 12 | A Perfect Murder | Jun 5 | 68 | 16.6 | 2845 | 5840 | Warner Bros. |
| 13 | Six Days, Seven Nights | Jun 12 | 73 | 16.5 | 2550 | 6465 | Buena Vista |
| 14 | Snake Eyes | Aug 7 | 60 | 16.3 | 2713 | 6012 | Paramount |
| 15 | Halloween : H20 | Aug 5 | 55 | 16.2 | 2607 | 6209 | Miramax |
| 16 | Hope Floats | May 29 | 60 | 14.2 | 2367 | 6004 | Fox |
| 17 | Small Soldiers | Jul 10 | 56 | 14.0 | 2539 | 5533 | DreamWorks |
| 18 | There's Something About Mary | Jul 15 | 190 | 13.7 | 2186 | 6286 | Fox |
| 19 | The Horse Whisperer | May 15 | 76 | 13.7 | 2039 | 6712 | Buena Vista |
| 20 | Out of Sight | Jun 26 | 39 | 12.0 | 2106 | 5708 | Universal |