Rendezvous - S2-E10
Continuity mistake: Sarah closes the postbox and walks away with the box remaining closed. When she gets in the car the box is open. (00:13:15)
Rendezvous - S2-E10
Continuity mistake: Sarah closes the mailbox at the Rendezvous and keeps her hand on the box. Camera changes and she has a hand on her hair. (00:13:30)
Rendezvous - S2-E10
Continuity mistake: The second time Sucre is on the phone, he has his arm on top of the phone box. Camera changes and now his arm is down and his hand is by his mouth. (00:34:00)
Rendezvous - S2-E10
Continuity mistake: Near the end, Sarah is bandaging Michael's arm. In the first shot, his arm is raised, in the second it's lowered. (00:38:00)
Rendezvous - S2-E10
Continuity mistake: Season 2, Episode 10 "Rendezvous". When Geary hits Bellic then backpack with money falls. In the next shot, before Geary hits Bellic second time we see that the backpack is standing.
Continuity mistake: In the hardware store, the box with the vials in keeps changing from open to closed. (00:01:50)
Continuity mistake: When Michael knocks the clerk to the floor, his head is next to 2 coolers. When the camera changes a shelving unit has appeared. (00:02:30)
Continuity mistake: The positions of the coolers the clerk falls into changes between shots. Note the colours of them. (00:02:40)
Continuity mistake: When Bill lets Mahone out of the cage he's in, Bill has his left hand above the latch in one shot and not in the next. (00:16:25)
Continuity mistake: When Sarah is being tortured at the end, her hair is constantly changing position. (00:40:00)
Continuity mistake: When Sara is being tortured in the bathtub Paul Kellerman receives a call. When we see a brief clip of Sara, her hair is a lot drier than it was a second earlier.
Disconnect - S2-E12
Continuity mistake: When Detective Slattery gets the envelope with the receipt in it she leaves the top open and walks to her desk. Camera changes and now the envelope is closed and held differently. (00:26:20)
Disconnect - S2-E12
Continuity mistake: Slattery holds out of the receipt for Brad to look at, she has her finger on the red tape. When the camera shows a close up, her thumb is off the red tape. (00:26:40)
Disconnect - S2-E12
Continuity mistake: Brad is arrested for Roy's murder and has his head on the desk. Camera cuts and it's no longer on the desk. (00:38:20)
Continuity mistake: Belleck gets his bail denied, and he raises his hand to his face. Camera cuts to the front to see him perform the same action again. (00:14:39)
Continuity mistake: When the van comes to a stop in the tunnel, it is out of alignment with the rest of the convoy. Camera changes and the van has now shifted sideways, back into alignment. (00:26:25)
Continuity mistake: We see T-Bag standing leaning against a post - he has a pocket watch in his good hand and his bad hand is lowered. Camera cuts and now his bad hand is raised and his good hand is open palmed. (00:29:28)
Answer: Because of coincidence.