The actual location used for the wedding venue was Graydon Hall Manor in Toronto, Canada.
It has been repeatedly mentioned that Moira Rose names her wigs. She asks Roland to help save "Lorna" and "Cindy" from some possible smoke damage.
The umbrella that Moira uses in this episode is reminiscent of the carousel hat that beatlejuice wears in the movie beatlejuice also staring Catherine O'Hara.
In the first scene, when Moira is in the closet, Alexis makes reference to the fact that she's been in there for a week. But in the next scene when they're touring the venue, Stevie still has her makeup from Cabaret, and they talk about the wrap party the night before.