Bez - London premiere of 'Alan Partridge: Alpha Papa' held at Leicester Square - London, United Kingdom - Wednesday 24th July 2013 (9 Pictures)
The live album is set for released in November.
The movie begins filming in the UK.
The 'Sherlock' and 'Doctor Strange' star joined Gilmour onstage at the Royal Albert Hall for a rendition of the Pink Floyd classic.
Time to learn what Kathy Bates' character has to do with all of this.