Well, it looks like the BBC are about to fuck us with double-dipped alternate versions of the 50th, and especially the TV viewers. There are three different versions! a 76, 80, and 85 minute cut - the latter for the cinema screenings, the other two for home viewing (presumably 80 for Blu-Ray and 76 for us DVD-watching luddites...)
http://bbfc.co.uk/releases/doctor-who-day-doctor-2013 - click on the arrow next to "related items - feature" to see all four versions.
http://bbfc.co.uk/releases/doctor-who-day-doctor-2013 - click on the arrow next to "related items - feature" to see all four versions.