Continuity mistake: When Bob runs away during the incident with the pushy lady that wants to buy him off James, the cat is wearing his leash in some shots, and isn't in others. (01:16:50)
Deliberate mistake: Some odd legal matter must be involved here; when we see the two ladies look at the viral video, one tells the other to look at the "Youtube" sensation with over a million views, but the website shown is not Youtube but an obvious knockoff version. (01:19:30)
Continuity mistake: James after talking to the pushers outside his house steps in, and behind him we see Bob curled by the window. In the following close-up the cat is turned in a different direction. (01:21:00)
Factual error: James is having the preliminary chat with the book publishers. They are discussing in a room with several promo posters ("Alice and the Fly", "Solitude Creek") of books that came out in 2015, well past the date the movie itself reveals later. (01:30:20)
Factual error: At the book signing, the store features books who are not from the correct timeframe but from the time when the movie was shot in late 2015. Examples include a book of baby names with a big 2016 on the cover, on a shelf right when Betty appears, or "The Complete Discworld Atlas" by Terry Pratchett, between Anthony Head and Beth Goddard in their close-up during James' speech. (01:34:35)
