The biggest problems Kelly and Poster faced on set were lighting the large auditorium for the Sparkle Motion sequence and lighting Frank the Bunny. "We used smoke in the auditorium," Poster said. "Smoke is a great lighting trick. It allows you to light areas that you don't necessarily have to put light in-- you light the smoke and it gives you that appearance that there's light there. It's tricky to use, though, because if you get a backlight on it, it shows the smoke and it doesn't look great. That was one trick that I used to be able to see the shapes of the audience in the background without having to light too much. That also helped silhouette the girls onstage."