Photo credit: Joe Alvarez
View All: 69th Cannes Film Festival
Next Willem Dafoe Slideshow: 69th Cannes Film Festival - Cannes France - Sunday 22nd May 2016
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.