Lost (2004)

One of Us - S3-E16

Continuity mistake: Episode 3-16, "One of Us". The amount of medicine in the syringe that Juliette is holding changes fullness from when she fills it to when she injects it into her stomach.

Boobra

One of Us - S3-E16

Continuity mistake: Episode 3-16, "One of Us". When Juliette and Ben are talking towards the end, Ben is first seen with his hands folded (fingers interlocking) in front of him. Just after Juliette says "I'll admit to it, tell her it was the only way to gain her trust", Ben's hands are in the same position, but are not folded, his right hand is just lying on top of his left. Cut to a close-up of Ben, and his hands are once again folded.

Twotall

One of Us - S3-E16

Other mistake: When Jack, Kate, and Sayid all appear from behind the bush one by one, you can see Sayid's legs, waiting for his cue to emerge. (00:14:20)

Ssiscool ★

One of Us - S3-E16

Continuity mistake: When Hurley and Juliette are talking on the beach, Hurley's hair is either over his shoulder or hanging down by his face. (00:16:20)

Ssiscool ★

One of Us - S3-E16

Continuity mistake: When Juliette gets out of the submarine, pay attention to her position on the wooden slats. She moves backwards between instant cuts. (00:11:50)

Ssiscool ★