Black Mirror: Bandersnatch

A Black Mirror (2011) interactive film, in which the viewer chooses the plot direction multiple times. Although the listed running time is 90 minutes, this is approximate, depending how long the viewer decides to keep watching: most people can finish the story in one sitting of around 40 minutes, but this can be extended with ‘do-overs’, where an option is given to return to an earlier point in the story and make another choice. About 2.5 hours of footage divided into 250 segments was shot for the episode, with over a trillion unique permutations of the story (though many of those will be very similar). The total amount of footage included to make all of the film’s possible variations work is 5 hours 12 minutes 13 seconds, as revealed by the film’s BBFC classification.