Visible crew/equipment: While Tony and Paulie are alone aboard the rented boat, Tony questions Paulie about being the joke leak. When Paulie denies it and says, "It wasn't me, Ton'... That's right," Tony lifts his beer and drinks. It then cuts to a wide shot of the swaying boat, and at the top of the screen, we see a hand move atop the steering wheel at the helm; we even see the top of the hair of this crouching crew member as the wind blows, right before this shot cuts away.
Visible crew/equipment: During one of Tony's coma dreams, when the hotel elevator is out of order, Tony uses the stairway and then ends up falling down a flight of stairs. Just before he lands, we can see a crew member's hands holding a camera steady (filming the stunt double's close-up view) at the bottom left corner of the screen.
Visible crew/equipment: After Tony gives Dr Cusamano the box of Cuban cigars, when the telephone rings, Tony walks over to answer it, and a crouching crew member is visible at the bottom right corner of the screen.
Knight in White Satin Armor - S2-E12
Visible crew/equipment: When Janice shoots Ritchie in the chair, when he falls back, you can see a hand underneath push the chair.
Audio problem: When Tony confronts Carmela in the backyard about the pool having been drained, when the shot changes to a camera angle inside the empty pool and Tony says "I thought we were getting along better lately", his lips don't match his lines. (00:15:49)
Knight in White Satin Armor - S2-E12
Continuity mistake: When Tony says goodbye to Janice by the bus. A black fella in a hat has already walked past them both. But as the camera angle changes. The same fella walks past them again from 5 yards further back. (00:54:14)
Continuity mistake: Meadow takes the carton of milk out of the fridge and leaves it on the counter. Tony gets up and opens the fridge and the carton of milk is back inside. (00:11:01 - 00:11:53)
Continuity mistake: Towards the end of the episode Carmella is reading a book on real estate. When a close up of the book is shown, she is at the beginning of chapter 1, yet when the camera angle changes she is about halfway through the book.
The Strong, Silent Type - S4-E10
Continuity mistake: Tony gives Corrado a glass of wine, holding it from the sides. A frame later his hand is on top of the glass.
Continuity mistake: Ralph's left ear is pierced. The prop of his cut head is not.
Continuity mistake: When Artie visits Tony, he runs to the bathroom. Later in the scene, Artie and Carmela help Tony up to go to the bathroom, but Artie says, "Where're we headed?" as though he didn't know where the bathroom was.
For All Debts Public and Private - S4-E1
Continuity mistake: When Chris places the twenty dollar bill on the fridge, there's a picture of a fat kid next to it. Depending on the angle, a paper covers/not part of the photo.
Christopher - S4-E3
Continuity mistake: When Gabriella confronts Father Phil about the public speaker, the cannoli that Father Phil has in front of him changes halfway through the scene.
Other mistake: The set up of Dr Melfi's office makes no sense. Her office is in a building with other doctors,yet there's windows on the right side of her office where another doctor's office is.
Revealing mistake: Jackie is shot in the head, and not only does his head not burst, but the snow mount in front is already covered all over in blood before he falls.
Continuity mistake: While Tony sits with his nephew, the peanut butter jar moves closer to the remote control between the first and second shot.
Answer: That's not Jimmy, just a look-a-like. Jimmy's short and stout, the guy in "Christopher" episode is tall and medium built. The hair is also different.