The gang was reunited to nearly watch the wrong movie and then eventually watch the right movie: Scar 3D (2007)
This is a low-budget grungy horror film, in a similar vein to Saw. The only actors we recognised were Christopher Titus and Angela Bettis (from the 2002 Carrie TV movie) and Devon Graye (who played Teenage Dexter in Dexter)
It was in old-school red and blue 3D. An early review said someone in a test screening vomited and another person was unconscious with paramedics being called.
It boasts that it was edited in HD (720) and its wiki page says it's the "first feature length narrative 3D movie to be completed in a completely digital workflow."
The production workflow was designed by NHK and DitlevFilms. Using a 3D camera rig engineered by NTS in Japan (built around two digital high definition Sony cameras).
Originally published 4 May 2021.