Lorelai and Rory are sitting at a table, with Rory looking at herself in a mirror, they talk about Rory's hair. Right after this, Rory asks, "Do you want something to drink?" and her mouth doesn't move at all.
While sitting around at Friday night dinner, Emily and Richard talk about Richard's mother, mentioning what a great woman she was and thereby implying she has passed on. In later episodes, Richard's mother makes a number of appearances and is very much alive.
Near the end, we see the reception of the wedding at the Independence Inn, where a set of identical twins have married a second set of identical twins in a double wedding. But in the pan around the reception, there are three brides! The first bride dances, carrying her bouquet, past the camera and wearing a white dress with thin straps, and a veil. The second then dances past, wearing an off-the-shoulder white dress and carrying a bouquet. A third bride then dances past, carrying another bouquet, wearing a v-neck white dress and a veil.