Other mistake: In the scene where Janice is trying on her wedding gown with Carmela, her tattoo is gone. However, in all the other shots, her tattoo is above her cleavage line, between her boobs. It's nowhere to be seen in the wedding dress shots.
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.