Starring: James Gandolfini, Lorraine Bracco, Edie Falco, Michael Imperioli
Deliberate mistake: While Tony stands beside his car, the first assassin shoots at him, and when Tony dives into the front seat we see the car's dashboard. After struggling with the second assassin, when Tony crashes into the parked car, in the shot from inside the car, there are two issues: the car has a different style dashboard with no air vents, and the rearview mirror is missing; then it reappears.
Guy Walks Into a Psychiatrist's Office - S2-E1
Plot hole: In this episode Tony tells Janice that he has just put their mother's house on the market. In season one, the house had already been sold.
Suggested correction: Tony and others say many things that aren't accurate. While season one gives the firm impression that the house is sold, it's not confirmed on screen. There may have been a deal where the intended buyer couldn't get financing or a closing never took place for other reasons.
Tony Soprano: Oh, poor baby. What do you want, a Whitman's Sampler?
Question: During a restaurant scene Drea deMatteo plays a hostess. She seats the Sopranos, but does not seem to know them. Was she picked to play Adriana after this episode?
Answer: Yup, just like Nicholas Lea was chosen to play Alex Krycek on the X-files after showing up on 1 episode as a different character.
Answer: No need to go that far for another example. There's also the famous Gino from the episode where Christopher shoots the seller in a bakery, which miraculously becomes Vito.