Scheduling conflicts with Dawson's Creek (1998), The Faculty (1998), Halloween H20: 20 Years Later (1998), and gearing up to direct Teaching Mrs. Tingle (1999) prevented Kevin Williamson from writing the screenplay for both this film and Scream 3 (2000) after having written their predecessors.
Jennifer Love Hewitt, Freddie Prinze Jr., and Muse Watson are the only actors to reprise their roles from the previous film, with Sarah Michelle Gellar only reappearing as Helen Shivers via a photograph.
The film's budget is sometimes incorrectly listed as 65 million. The actual budget was 24 million and only amounted to the former number after promotional material, theatre rentals, and other hidden costs post-shooting.
A sequel, I'll Always Know What You Did Last Summer (2006), was announced in 2000, and was originally meant to star survivors Jennifer Love Hewitt, Brandy Norwood and Freddie Prinze Jr. again. However, the film was left alone for a while and the original script, which involved Jennifer, Brandy and Freddie, was scrapped and a whole new script was written. Despite the script being rewritten, Hewitt was rumored to have a cameo appearance in the new sequel, but never made it.
In the original script, Ben had an extra line of dialogue after being shot by Julie, he said "I'll always be with you Julie" whilst falling into the grave, also, the dirt around the grave caved in burying him, this kind of implies that he would have returned for I'll Always Know What You Did Last Summer (2006). You can see the dialogue in the films screenplay published by Archways Paperback in pocket book form. There are other tiny omissions in the screenplay as well.