Got the DVD the other day. There's lots of great extras on it.
I found out why I believe Data mentioned an Octopus at the end. Well, one of the deleted scenes had an octopus attack scene. I guess Speilberg figured there wasn't really a point to have an octopus. And Chunk is doing good, he's gone to college and he actually looked pretty good.
And yeah, his fatness is pretty normal now. I prolly have the same body fat index as he does, and I'm not fat by today's standards.