The Boxer and the Butterfly

At around 13 minutes and 30 seconds into the film, when Rowan (Katrina Norman) steps into the empty gym looking for Walt (Brock Yurich), she sees a photo of Walt with another man. The other man in the photo is Brock Yurich's real-life father, John Yurich.

The photo was originally posted on Brock's Instagram page in June 2020, but some changes were made for its appearance in the movie. In the original image, John's shirt featured a large Under Armour logo, which was digitally removed in the film to avoid potential licensing or copyright issues. Additionally, Brock's gray shirt in the photo was altered; while the movie version displays only the year '1962' across the chest, the original image included a bodybuilder graphic beneath the year.

At around 13 minutes and 50 seconds into the film, when Rowan (Katrina Norman) rings the bell, crew members can visibly be seen reflected in the bell.