To Plea or Not to Plea - S5-E22
Revealing mistake: When Emily calls Varjak's number from the Tony's Pizza receipt, her phone says that it has no service - meaning she should not be capable of making any calls.
Pretty Little Liars (2010)
1 revealing mistake in To Plea or Not to Plea - chronological order
Starring: Lucy Hale, Ashley Benson, Sasha Pieterse, Shay Mitchell
Continuity mistake: On the video of Ian supposedly killing Alison, we see her arm fall to the ground with her "Alison" bracelet visible. But in a later scene where Emily watches Ian put his bag in the athletics room, we cut back to the video and Alison's arm suddenly has a sleeve covering up her bracelet. When we see the video again later in the series, her bracelet is visible again.
Trivia: Lesley Fera, who plays the mother of Torrey DeVitto and Troian Bellisario in this series, is, in reality, only 12 years older than DeVitto and 13 years older than Bellisario.