Continuity mistake: When Art kills Simon Frontenac, the barrel of his handgun is pulled back, indicating that the magazine is empty. When he checks Frontenac's pulse, the barrel is pulled forward again.
Orphan Black (2013)
1 continuity mistake in One Fettered Slave
Starring: Tatiana Maslany, Maria Doyle Kennedy, Jordan Gavaris, Kristian Bruun
Continuity mistake: When Gracie is on the phone to Mark and reading Helena's diary, the diary has changed position on Helena's bed before Gracie touches it.