I Know What You Did Last Summer backdrop
I Know What You Did Last Summer poster
#1,628 All-time worldwide
#38 1997 releases

Movie profile

I Know What You Did Last Summer

1997 · 102 min · Mandalay Entertainment

Box office snapshot

Financial performance

Reference figures based on available reported data.
Worldwide gross $125.6M
Budget $17.0M
Gross minus budget $108.6M
ROI 7.39x

Domestic gross

$60.3M

Estimated from worldwide gross

International gross

$65.3M

Estimated from worldwide gross

Opening weekend

$25.9M

Estimated from worldwide gross

Ranking context

Where I Know What You Did Last Summer ranks

Positioned across the all-time chart, release year, studio, franchise and genre indexes where enough mapped data exists.
Open rankings

Quick answer

How did I Know What You Did Last Summer (1997) perform at the box office?

High confidence

I Know What You Did Last Summer (1997) earned a reported $125.6M worldwide against a reported $17.0M production budget. Its gross-minus-budget figure is about $108.6M. The current gross-to-budget multiple is 7.39x. In this database it currently ranks #1,628 in the current all-time worldwide chart set and #38 among 1997 releases.

Worldwide gross
$125,586,134
Budget
$17,000,000
Gross minus budget
$108,586,134
ROI
7.39x
Source: TMDb. Last updated: Jul 13, 2026. View source Gross-minus-budget is not studio net profit. It excludes marketing, distribution fees, revenue splits, tax incentives and later home/streaming revenue.

Synopsis

Story

After an accident on a winding road, four teens make the fatal mistake of dumping their victim's body into the sea. Exactly one year later, the deadly secret resurfaces as they're stalked by a hook-handed figure.

Movie facts

Production details

Release date
Oct 17, 1997
Production
Mandalay Entertainment, Neal H. Moritz Productions
Countries
US

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AI summary

Why this movie matters

Released in 1997, I Know What You Did Last Summer is positioned in this dataset as a Horror, Thriller, Mystery title from Mandalay Entertainment. Its box office profile shows that available worldwide gross is $125.6M, reported production budget is $17.0M, gross-minus-budget is $108.6M, ROI is 7.39x. For comparison, it currently sits #1,628 all-time in the current chart set and #38 among 1997 releases. Streaming availability should be checked against the selected United States region because provider rights can change.

AI-generated contextual summary based on available movie, genre, ranking and box office data. It does not replace official distributor notes or financial reporting.
Data noteGross minus budget is not studio net profit. It excludes marketing, distribution fees, revenue splits, tax incentives and downstream revenue. Domestic, international and opening weekend figures marked as estimated are modelled estimates.