I was recently doing some Wayback Machine snooping around the website for Don't Think. After clicking a few links, I ended up here at
the EMI music store (archive from June 22, 2012). It would seem that at some point, you could purchase a digital file containing a widescreen 5.1 surround version of Don't Think. However, at some point, this was removed. Trying to access the EMI store now leads to nothing and there's no trace of this ever being available anywhere online.
It's a shame, since now the only way to see it is to buy the DVD or Blu-ray (or the 240p Vimeo rip (yes, it looks EXACTLY as bad as you think it does)).