Revealing mistake: The person slamming Blaire's laptop shut at the end is a male crew member.
Unfriended (2014)
1 revealing mistake - chronological order
Directed by: Levan Gabriadze
Starring: Cal Barnes, Courtney Halverson, Heather Sossaman, Matthew Bohrer, Shelley Hennig
Continuity mistake: When Blair asks Mitch "why aren't you answering me?" he says he got a weird message from Laura Barns. Blair replies "that's not funny" and Mitch replies "I'm serious." Then Blair gets a message from Laura, and when she switches back to Mitch's conversation, the last two entries, "that's not funny" and "I'm serious" have disappeared. (00:10:50 - 00:12:30)
Blaire Lily: Please, Laura we are not bad people... we are good people.
Laura: Really? Are you sure about that?
More questions & answers from Unfriended
Answer: Blair's friends were responsible for some of the online bullying, but she said everyone is doing it, so they did. That's the only thing I can think of anyway.