There are a few rare (and claimed ‘never seen before’) pictures of Carrie Fisher from behind the scenes of Empire Strikes Back here (and a few items for sale at an upcoming auction):-
http://www.thegeektwins.com/2017/10/11-wonderful-things-from-carrie-fisher.html
From the I haven’t watched Empire in 20 years file; I don’t even remember Treat Williams being in the movie. Some nice pictures of Carrie for sure. It’s always nice to be reminded of how beautiful she was. It will be strange watching her last film two months from now.
I think there’ll likely be a fair few of us with ‘some dust or something in my eye’ when we see her in that film.