Cinema Paradoxo was a cinema that played every movie in existence at the same time in perpetuity for audiences numbering in the billions.
The Twelfth Doctor took Clara Oswald to the Cinema Paradoxo, but when she began to ask for a movie, the Doctor said he'd already chosen what they were going to see because it was his turn. The two intended to see a silent film only to discover that the film was acted out by Silents, leaving them unable to recall any of it. (COMIC: Silver Screenesis)