: To achieve realistic movement during the infamous storm scenes, the production used a specialized gimbal that tilted the entire yacht set up to 20 degrees in both directions. This caused actual seasickness among the crew, who had to take motion sickness pills to work.
: The title refers to the "glabella," the space between the eyebrows where frown lines form. In the fashion world, models are often told to "fix" this "triangle of sadness" with Botox.
: For the graphic dinner scene, actors wore tiny nozzles in their mouths connected to tubes operated by the effects team. This allowed the crew to trigger "vomiting" on demand, meaning the actors had no control over when the fluid would be pumped out.