Yeah noticed the other textures, the couch and floor in particular. Turning on antialiasing+anistropic filtering for screenshots also adds to the effect of it.

I'm surprised sometimes when people post screenshots and videos of RC, it looks better than I usually think.

Here's a link to the Ghostbusters poster you liked.
http://images.themoviedb.org/posters/13845/Ghost-Busters_49623a2e.jpg

RetroCopy handles huge textures well.