Michelle Gunn, who plays the hotel receptionist, is Jenna Fischer's ex-sister in-law.
The names on the board for Jim and Pam's rehearsal dinner read Beesly and Halpret instead of Beesley and Halpert.
The t-shirt Dwight is wearing for the party is called "Three Wolf Moon" and is known for its numerous satirical reviews on Amazon.com, thus becoming an Internet phenomenon.
The episode was initially assigned for Mindy Kaling to write, but executive producer Greg Daniels said he was interested in contributing.
In the original draft, the wedding was supposed to take place on the Booze Cruise, but Niagara Falls were chosen instead.