While pint-sized guests noshed on crustless PB&Js, the adult stars of Dimension Films’ “Spy Kids: All the Time in the World in 4D” were singing scribe-helmer Robert Rodriguez’s praises at the film’s premiere on Sunday at the ESPN Zone at L.A. Live downtown.

“I would play a lovable pedophile if he wanted me to,” joked Joel McHale. But he said the movie was tough on his co-star Jessica Alba.

“It was one of the hardest roles she has ever had to play because she had to pretend to like a guy that looks like me. It really shows how good she is at acting,” he quipped.

Pic’s baddie Jeremy Piven brought his nieces to the premiere for a sinister reason. “They don’t know what Uncle Jeremy does for a living, they’ve never seen me act before,” he said. “It was nice to possibly scare them.” –