The Strong, Silent Type - S4-E10
Revealing mistake: Christopher is high from shooting heroin and sits on Adriana's dog and kills it. She comes home and calls for the dog and sees her under Christopher. He picks her up and you can plainly tell its a stuffed dog.
Continuity mistake: When Tony speaks to Artie at his home, Artie is seen putting a cigarette in his mouth. However, in the next shot the cigarette has disappeared and Artie is drinking from his cup instead. (00:18:35)
Continuity mistake: Christopher is trying to start a fire with sticks and has a cigarette in his mouth. He starts to go back into the van with the cigarette in his mouth but in the next shot the cigarette is gone and he is rubbing his hands together.
Continuity mistake: While Tony sits with his nephew, the peanut butter jar moves closer to the remote control between the first and second shot.
For All Debts Public and Private - S4-E1
Continuity mistake: When Tony Jr. reads the newspaper, his part of the table changes completely: The napkin changes position, the orange juice comes closer to his arm, the spoon in the bowl changes positions, and a mug in front is replaced for a load of papers. The position of his thumb also swaps from being beneath a photo, to on top of it depending on the angle.
University - S3-E6
Continuity mistake: When AJ is having breakfast, the syrup bottle moves around by itself between shots.
Continuity mistake: The table with the beer bottle by the pool gets closer to the chair after Tony sits down.
University - S3-E6
Continuity mistake: Tracey is cuddling Ralphie at home and places her hand on his belly. The left and right angles of her movement do not match: When she brings her hand towards herself, the following angle shows it on the opposite side.
University - S3-E6
Continuity mistake: When Ralphie and Tracey are at home, he places a dish with a cookie on his belly. The dish keeps moving up and down depending on the angle.
Knight in White Satin Armor - S2-E12
Revealing mistake: Richie is breathing on the floor, despite having been shot to death. (00:46:58)
Continuity mistake: Tony gets out of the car near the start and there is no glass on the floor, when he calls Christopher over, broken glass on the ground has appeared.
Other mistake: In the scene where Paulie Gualtieri goes to confront "Feech" La Manna at the bakery concerning the landscaping feud, the clock on the wall doesn't match the time on La Manna's watch or the clock on the wall behind La Manna's desk. The big clock says 11:55 while the other two say either 2:45 or 9:10.
Marco Polo - S5-E8
Continuity mistake: When Carmela is eating dinner with her parents and AJ, the amount of coke in her glass changes between front and rear shots.
I Dream of Jeannie Cusamano - S1-E13
Revealing mistake: After Tony has a talk with his mother while she is on a stretcher at the hospital, he gives a headbutt to one of the paramedics, but you can see that he actually misses him in the head by at least ten centimetres. (00:53:37)
From Where to Eternity - S2-E9
Continuity mistake: When Tony tells a joke to Pussy while at the restaurant, Tony's glass fills up with beer by itself in the shot after he finishes telling the joke. (00:48:18 - 00:48:48)
Revealing mistake: Closing scene. Tony and his son are in the kitchen making ice cream sundaes. The second time Tony holds the can of whipping cream over the boy's mouth, the kid actor looks off camera for direction.
Revealing mistake: When Tony runs with the car against the guy, he wears a protective pad under the pants in the area where Tony punches him. (00:10:54)
Revealing mistake: When Bobby feels provoked by Tony and gives him the first punch making him fall from the chair, Tony is then shown getting up. If you look very carefully, that shot actually shows Tony falling instead, so they reversed it to make it look like he was going to get up. (00:27:24)
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.