Corrected entry: Jenna is spotted by Hanna using her reflection in an elevator to apply lipstick. This makes no sense as, at this point, Jenna is blind. She doesn't get her eyes repaired until season two, and the Liars don't learn she can see until season three.
Pretty Little Liars (2010)
1 corrected entry in season 1
Starring: Lucy Hale, Ashley Benson, Sasha Pieterse, Shay Mitchell
Someone to Watch Over Me - S1-E20
Continuity mistake: After Jenna is slapped by Hanna in the bathroom a single tear streams down her right cheek. The next shot of Jenna shows the tear track on her left cheek.
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.
Correction: At the time, we weren't exactly sure of the condition of Jenna's eyes. Remember in a later episode when she got the "surgery", she told Toby it didn't work. We later saw her swat and kill a fly in the same episode. I'm sure Jenna had a way of knowing that Hanna (or 1 of the 4 girls) was in the elevator with her. If indeed she couldn't see, she is still capable of taunting the girls. However, if she could see that Hanna was in there with her, of course she is going to make her second guess.