The latest “Spy Kids” movie features “Aroma-Scope,” in which viewers are given scratch-and-sniff cards with circles numbered 1 to 8. When a number appears on screen, they rub the corresponding circle on their cards, which give off a whiff matching what the characters are smelling.

Robert Rodriguez deliberately tried to make his latest “Spy Kids” adventure a bit of a stinker.

Rodriguez, who helped usher in the new age of 3-D movies with the franchise’s third installment in 2003, is billing “Spy Kids: All the Time in the World,” opening today, as 4-D – adding scent cards so audiences can follow along on the action with their noses.

Worst idea ever! It's bad enough sitting next to a teenage boy reeking of Axe body spray at the movies. But your opinion may differ. Would you like to see more scratch and sniff movies?

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