Trivia

Alyson Hannigan only worked for two days.

The character Jamie was named after scream queen Jamie Lee Curtis.

The sign outside of Rings of Saturn reads "I like big books and I cannot lie". This is a reference to a lyric from the Sir Mix-A-Lot song "Baby Got Back".

Camp scenes were filmed at Camp Bon Temps in Breaux Bridge, Louisiana. Store scenes were filmed at "... And Books Too", a comic book and hobby store in Lafayette, Louisiana.

A copy of The Mortal Tally is visible on the counter next to Chuck at Saturn Rings. This is a book written by Sam Sykes, one of the producers (and co-author of the Twitter thread which inspired) the movie.