In "The Sopranos," Silvio is a childhood friend of Tony's and only about three years older than Tony. In this movie, Silvio is shown as a balding man about 15 years older than Tony.
The second speaker is already falling apart before Tony throws it out of the window.
correction: The speakers had their covers Velcro'd on, like when Dicki was showing them to Tony in the warehouse. The cover was coming off as he carried and shoved it, which would have been normal.
Every time Tony's age was mentioned on the series, including in flashbacks to his Newark days, the character was the same age as the actor, James Gandolfini. That would have made Tony ten years old, not seventeen, when Christopher was born, in 1971.
When Sil is talking to Dickie towards end of the movie about Anthony and gives him a Christmas present, the same yellow car passes in the background twice within a span of 15 to 30 seconds.
At just over 51 minutes in, narrator Christopher Moltisanti says, "The '60s ended. Neil Young gave that speech from the moon..." erroneously referencing the musician rather than the astronaut Neil Armstrong. This was done intentionally in order to indicate that Christopher is not a particularly smart person.
When Tony is handing out free ice cream, the shot of him handing an ice cream cone to the boy wearing a vest (1:06:17) is re-used just a few seconds later.
When Johnny shoots Livia's hair in the car, the bullet should've gone through the closed window, but it was fine.
When Dickie burns his dead father's body, the fire is obviously CGI.
The Sopranos (1999) TV series established on several occasions that Tony Soprano was born in 1960; for example, in The Sopranos: Join the Club (2006) his wife Carmela tells a pair of FBI agents that Tony "was three years old" at the time of the John F. Kennedy assassination on November 22, 1963. However, this film's scenes set in 1967, when he would have been about seven, show Tony as a middle-school-aged boy around 11-13 years old. The later scenes showing Tony as a teenager aren't set in any particular year, but if he was born in 1960 he would have been in high school from around 1974-78.
About ten minutes in a big dark blue sedan is in front of a house, partially stripped. Although this scene is set in 1967, the car is a 1973 or newer Checker Marathon.
In voiceover, Christopher says, "He choked me to death." But Tony actually smothered Christopher, by holding his nose and covering his mouth, so that Christopher drowns in his own blood.