“This is called ‘Bumping the Lamp,’ a phrase coined by Disney during the production of Roger Rabbit to describe going above and beyond what was expected of the animators. […]
"It’s an incredible film by its own merit. The storytelling, the heart, and the humor–that’s where the true movie magic is–but it’s those technical subtleties and the dedication to the craft that really inspires new artists, and that’s something to be admired.
"So in your work, always take the chance to bump the lamp, because somebody out there will notice.”
what she means:
In Who Framed Roger Rabbit, Roger puts his hand down on a dusty chair. When he takes his hand away there are finger prints in the dust. Someone took the time to make sure the prints matched exactly to his cartoon hands. The editing is flawless. So much love and attention went into this movie, so many details that would only be seen through careful re-watching. Also you get to see Mickey Mouse and Bugs Bunny in the same scene which is pretty cool.