Continuity mistake: In the scene in the pizza place, the coffee pot's handle moves around between shots, and the design changes completely. Sometimes it's round then triangular.
Visible crew/equipment: When AJ tries on his new military school uniform, he's pressured to also put on the hat. Then, after AJ looks at himself in the mirror, just as he walks back toward his mother, the reflection of the boom mic becomes visible in that mirror directly over Carmela's reflection, at the right side of the screen.
Visible crew/equipment: Livia and Junior have a chat about Tony while waiting in line for a movie matinee. It then cuts to the Soprano house, and in the next overhead shot of Tony sprawled on his bed, we can see the T-mark on the floor near the door. In a moment, Lilliana knocks and enters to remind Tony of his appointment.
Visible crew/equipment: When Jackie and his crew get to the poker game, an actor's red tape mark (double toe box type) is visible on the floor near the poker table. This will be where Carlo Renzi stands with his shotgun.
Visible crew/equipment: At the end, when Agent Harris introduces Tony to Agent Marquez and comments on the Mets, the reflections of equipment and the boom mic are visible on the store window.
Visible crew/equipment: After the loud crash is heard, everyone rushes to the front door of Satriale's. Just as Paulie and Tony open the two front doors in this exterior shot, the reflections of the camera and its operator are visible on the store's glass, at the right side of the screen.
Visible crew/equipment: After Tony enters the garage and finds AJ smoking pot with his friends, when Carmela walks in and comments about the smell, the reflection of the boom pole/mic moves across the car's windshield.
Visible crew/equipment: When Catherine puts on Corrado's CPAP mask/headgear while he's asleep, it then cuts to the stove at Satriale's where Paulie is cooking up sauce, and at the start of this shot, a red tape mark is visible on the floor at Silvio's feet.
Visible crew/equipment: While Tony and his crew are hanging out at Satriale's, they hear a crash outside, and as they all rush out the back room, we can see a red T-mark taped to the floor.
Visible crew/equipment: At dinner, when Tony bends down to kiss his mum, the moving boom mic's reflection becomes visible on the glass behind Livia. The reflection of the moving boom pole and mic continues to be seen during the dinner scene.
Visible crew/equipment: When Carmela and the kids exit Tony's room in the hospital, just as Agent Harris walks toward Tony, we can see the reflection of the boom pole and mic on the cabinet glass, near the right side 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.
Cold Stones - S6-E11
Deliberate mistake: Tony smashes AJ's front windshield of his Nissan SUV one time with a plastic sports helmet and it leaves a hole 4 times the size. Not only is the scale size of helmet to hole incorrect, but front vehicle windshields don't shatter like that. Modern windshields are made of laminated safety glass, which consists of two curved sheets of glass with a plastic layer laminated between them for safety, and bonded into the window frame. It would've taken many impacts to cause such a hole, not one hit. (00:49:00 - 00:49:45)
Visible crew/equipment: As Alex, Salvatore and Hesh walk along the bridge, if you watch the right side of the screen you can see a crew member wearing a purple T-shirt and holding a piece of equipment high in the air. (00:39:39)
Visible crew/equipment: When the camera lifts up on the last shot, you can see a lighting screen reflected on the right glass wall.
Guy Walks Into a Psychiatrist's Office - S2-E1
Revealing mistake: Christopher is seen sniffing some lines of coke, but he is just moving the dollar bill up and down not sniffing anything at all.
Revealing mistake: A different horse is used for close-ups and race shots; you can tell by looking at the white patch on Pie-O-My's head, which is much bigger in the close-ups.
Irregular Around the Margins - S5-E5
Continuity mistake: When Tony and Ade are playing darts, Ade throws a '3' and a bulls eye. When it cuts the darts have moved to '20' and '4'. (00:13:30)
Unidentified Black Male - S5-E9
Continuity mistake: Carmela's lawyer is holding a pen with his right hand. From a different angle, the pen is lying on a paper on the desk.
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.