I was on a long-distance airline flight. There was a girl with her family across the aisle. They were eating at a large formal dining table. Everyone else in her family appeared to be male and gay. She came over at one point to ask me to help her with something, so I said I would help. For some reason, she reminded me a lot of the girl from The Poseidon Adventure, though she didn't really look like her. Something about the way she was dressed, I think.
Then I suddenly realized it wasn't a plane at all, but rather a huge bus, on a twisty mountain highway that occasionally turned into hideously contorted roller coaster tracks.