SIGGRAPH 2006 chose to include this as part of the showcased CG they select every year for their Digital Theatre. I was lucky enough to see it there, and with the theatre setup they had, it was nothing short of astounding.
Interestingly enough, the idea of the film (3D visualization of the human cell and what goes on inside) is a major component of where I'm currently working. We got in touch with Harvard about the film, and talked to the group about it.
Most interesting fact about this particular piece - the entire thing was modeled and animated by one person.