- No Export for You: In the days before the film came out, but its page was visible on Netflix, some users were confused that they saw a runtime of 2 minutes rather than 90. When it was released this was revealed: if you are trying to watch an interactive episode on certain devices (even if the Netflix app has been updated) it instead plays an informational video telling you to switch to another device so that the features will work.
- What Could Have Been: Warren Ellis was offered the role of Jerome F. Davis, but was unable to commit due to a potential scheduling conflict.
- Why Fandom Can't Have Nice Things: Will Poulter got a ton of harassment on Twiter from people who didn't like the film, causing him to put his social media activity on an indefinite hold within a week of the film's release.
Trivia / Black Mirror: Bandersnatch