From the Disney Parks Blog:

"When “World of Color” first debuted in June, we hinted at the possibility of adding new stories and even more special moments to the show.

For the first time this past weekend, a specially-designed encore performance was added to the nighttime water spectacular, “World of Color,” at Disney California Adventure park.

Once again, “World of Color” takes Disney storytelling to new heights as the exciting world of “TRON: Legacy” is brought to life with a breathtaking combination of sky-high fountains, film projections, piercing lasers and pulsating light.

The “World of Color TRON: Legacy Encore” celebrates the mysterious cyber realm and the bold adventure of “TRON: Legacy,” Disney’s newest 3D film, which will be released Dec. 17. While The Grid has already come alive for guests during ElecTRONica in the Hollywood Pictures Backlot, The Grid roars to life in a new way at “World of Color” with light cycles, digital thunderstorms, cyber world gladiators, and the ominous soundtrack from “TRON: Legacy.”

There are also new surprises and creative effects that are projected onto the circular loop of California Screamin’. A completely new laser system has also been added to transform the coaster during the encore."

Short video and full story can be seen here.