In 1960, the film The Scent of Mystery introduced an innovative concept in cinema by incorporating scents into the viewing experience through a system called Smell-O-Vision. Several American theaters equipped their seats with tubes that released various smells, synchronized to the action on screen.
However, the initial screenings faced significant challenges. Viewers reported a distracting hissing noise accompanying the scent delivery, and many noted that the aromas often arrived a few seconds late, disrupting the intended effect. Although these technical issues were eventually addressed, negative feedback about both the system and the film itself had already tarnished its reputation.
As rumors about Smell-O-Vision's shortcomings spread, theaters abandoned the technology, and it was never utilized again. Despite its brief existence, Smell-O-Vision remains a fascinating chapter in cinema history, illustrating both the creativity and pitfalls of trying to enhance audience engagement through sensory experiences.