You know what they used to say Katzenberg was King (OK, dauphin) of Burbank.

“If you don’t come in Saturday don’t bother showing up for work Sunday.”

Not a huge turnout for this kiddie preview of “Ruby Gillman: Teenage Kraken.” But with real kids fare in short supply in this summer of “Elemental,” let’s hope DreamWorks delivers.

“Ruby” swims into theaters next weekend.