Never heard of this malarkey before, but worth a look.
Apparently some people are so desperate to get upgraded through their frequent flyer status that they are willing to do a marathon run of flights in order to propel themselves to the next level.
The maker of the movie embedded below explains further:
In this case, I had Premier status on United and I was 5,000 miles short of Premier Executive. I made it on Christmas Day 2004, and I traveled from Chicago, to Oakland, to LA, to Las Vegas and then back to Chicago. All in 20hrs. Very tiring. the movie was made from 300 photos and assembled in Adobe After Effects.The things people do for a glass of champers...
Kevin May, editor, Travolution
Hat tip: Jetvine