stated in its review of "Behind the Great Wall", "The AromaRama process itself, developed by a public relations executive, Charles Weiss, is fairly ingenious. The film carries a 'scent track' that transmits cues to an electronic 'trigger' that fires a salvo of scent into the theatre through the air-conditioning ports. The AromaRama people claim that they can reach every nose in the house within two seconds and remove the odor almost as fast. The perfumes are built up on a quick-evaporating base (Freon) and as the air is drawn off for filtering it is passed over electrically charged baffles that precipitate the aromatic particles." The film's poor reception threatened to derail the debut Scent of Mystery before it even opened, as the cinematic press now expected the odor release system to be poor. In its first week in New York it grossed $33,400 from 29 performances. Charles Weiss continued to experiment with motion pictures and aromas, adding fragrances to classic black and white films to demonstrate how smells might be used in the future. Scent of Mystery Todd Sr. had staged a series of musical films at the 1939 World's Fair and met Laube during this time. Fifteen years later, Todd and his son were thinking of ways they could enhance their film Around the World in Eighty Days. They remembered Laube's invention and although they decided not to use it for this film, Todd Jr., after his father's death, was intrigued enough to sign Laube to a movie deal. Laube's system, which was renamed "Smell-O-Vision" by Todd, had been improved in the intervening time. Now, instead of the scents being manually released, it used what he called a "smell brain", which was a series of perfume containers linked in a belt, arranged in the order that they would be released. The belt was then wound around a motorized reel. As the film threaded through the movie projector, markers on it would cue the brain. Needles would pierce membranes on the containers, releasing the scents, which would then be blown by fans through the pipes to individual vents underneath the audience members' seats. The cost of outfitting a theater to accommodate the system was anywhere from US$15,000 at Chicago's Cinestage theater to $1,000,000 elsewhere ($ to $ today). Both Laube and Todd understood that the system had aesthetic limitations. For example, a heavy drama was not the sort of film