Los Angeles, July 1 : Movie buffs should gear up for a new experience with the fourth instalment of the Weinstein Company's "Spy Kids" - audiences will be able to smell the aroma used in the film when it releases worldwide in 4D August 19.Directed by Robert Rodriguez, "Spy Kids: All the Time in the World" features Aromascope, a technology that allows people to smell the odours and aromas used in