Awkward script writing (spoiler)?
I don't know if this has been discussed, but it's always bothered me that after the dinner scene and all the guests are wildly enthused about the ghosts, as soon as Lydia comes back and says the ghosts won't come down, some of the guests immediately lose interest and even act as though the dinner scene didn't happen. They just leave.
Dick Cavett's exit line is really a cop-out. It's like Tim Burton needed to reduce the number of characters for the last part of the movie and just didn't know how to do it, so he just forced it and hoped no one would notice.
I saw the movie multiple times when it was released and once on TV, but not for several years, so my memory isn't great.
Thanks.