This virtual cinema screens more films than your local multiplex, all featuring the same lab superstar, the nematode Caenorhabditis elegans, a favorite for probing embryonic development. The flicks capture worms slithering, mating, and slurping their dinner, but most focus on how the nematode takes shape. The collection comes from developmental biologist and auteur Bob Goldstein of the University of North Carolina, Chapel Hill. Along with productions from Goldstein's lab, the site links to more than 20 other worm studios. One time-lapse movie tracks the entire 15-hour process of development, as a grainy fertilized egg cleaves, seethes, and swirls, finally coalescing into a squirming nematode. Or watch cells migrate to the embryo's interior during gastrulation, which sets up the three-layered construction characteristic of most animals.