I Know What You Did Last Summer has hit a major domestic box office milestone. The 2025 slasher movie is a legacy sequel that features a new group of young people involved in a series of revenge murders in Southport, North Carolina seeking the help of the franchise’s previous survivors, Ray (Freddie Prinze Jr.) and Julie (Jennifer Love Hewitt).

It debuted with $12.7 million at the domestic box office, marking the lowest opening weekend of the I Know What You Did Last Summer franchise. However, the movie has since earned a cumulative worldwide box office gross of more than $46 million, earning more than two and a half times its reported budget of $18 million.

Per The Numbers, I Know What You Did Last Summer has earned an additional $1 million in domestic theaters on Tuesday, July 29, bringing its cumulative domestic total to $25.4 million. This makes the movie the 33rd 2025 release to pᴀss the $25 million domestic milestone.

Additionally, this total sees it officially outgrossing the domestic run of the recent Blumhouse sequel M3GAN 2.0, which has so far made just over $24 million in North America. I Know What You Did Last Summer previously outgrossed M3GAN 2.0 worldwide, as the killer doll sequel has so far grossed roughly $39 million globally.

What This Means For I Know What You Did Last Summer

M3GAN 2.0 Performed Better With Both Critics And Audiences

The fact that I Know What You Did Last Summer was able to outgross M3GAN 2.0 was not a given, considering the fact that the latter тιтle received much better reviews. While both received splats on Rotten Tomatoes, M3GAN 2.0 earned a far superior 57%, compared to IKWYDLS‘ 37%.

These negative reviews of the new slasher include one from ScreenRant‘s own Mary Kᴀssel, who gave it a score of 4 out of 10. Below, read an excerpt from their I Know What You Did Last Summer review:

There are moments when the film is genuinely funny, and even a little sweet, but the stakes are too low and nebulous to be anxious about who will be gutted next. The film’s last-minute twist didn’t do anything to make up for this, as even if you didn’t see the killer’s reveal coming, it isn’t surprising. I never found myself genuinely wondering who the murderer was, which isn’t a good sign. I Know What You Did Last Summer isn’t the worst long-awaited horror sequel ever put to screen, but it doesn’t try to be anything but a shallow reflection of its predecessor.

The movie’s Popcornmeter scores show that they had a similar disparity of impact on audiences. Verified user reviews gave I Know What You Did Last Summer a score of 68%, compared to M3GAN 2.0‘s 82%.

However, M3GAN 2.0‘s Tomatometer score saw it taking a downturn from the original M3GAN (93%), while I Know What You Did Last Summer was about par with the 1997 original (47%) and improved upon its 1998 sequel (10%), so this factor may have helped it achieve better audience retention by not provoking as strong of a negative reaction.

Our Take On The I Know What You Did Last Summer Milestone

The Franchise’s Future Is Still Murky

While the ending of I Know What You Did Last Summer teases a potential sequel, it remains to be seen if its worldwide gross ends up being high enough to earn one. Movies typically need to earn back two and a half times their production budgets in theaters, which could mean that the sequel is now in the black.

However, the fact that I Know What You Did Last Summer has only now surpᴀssed M3GAN 2.0 (which will most likely end up being a flop due to its higher reported budget of roughly $25 million) domestically may not instill enough faith in the franchise for it to continue any time soon, especially in the wake of its franchise-low opening weekend.

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Source: The Numbers