The popcorn scene was setup (well it had been taken down when I shot the setup shot) on a piece of black corrugated plastic (so as not to get a sheet of foam core all buttery). That was placed on top of a tub (seen on the couch) to raise it a bit higher and give me some room to work and hide one of my two flashes under and behind the subject. Having the second flash on the table turned out to be helpful, as I was one lightstand short of what I needed.