It has been stated in two separate pieces of trivia that Aiden's son in this episode is actually Sarah Jessica Parker's son, but that is actually not the case. She even posted that to her Instagram as many people had thought it was.
This episode marks the only time Carrie has been shown riding the subway in the series. The only other time Carrie was shown riding public transportation was in Ring a Ding Ding (2002) when she tries riding a bus in an effort to save money. She would be shown riding the subway once more, in Sex and the City (2008).
Miranda misspelled Magda's name on her script for phone call to Steve. She wrote MAdga.
At 3:04 in the guy in the blue blazer with orange trim looks right at the camera for a split second.