Favorite part of the movie: Cooper thinks he beats the record at 93 seconds and turns around and realizes Scott and Glenn are still going! Laughed so hard at this part!
The actress who played the nurse, Jane Dornacker, was a traffic reporter for a New York radio station and was killed in a helicopter crash a few years after the movie was made while doing a traffic report.
Circular breathing is a technique used by players of some wind instruments to produce a continuous tone without interruption. It is accomplished by breathing in through the nose while simultaneously pushing air out through the mouth using air stored in the cheeks.
I had to get an annual pulmonary functions tests for my MOS in the Marines. I remember feeling like I was about to have my eyes pop out of my skull and onto the table.