Innovative when produced in 1979, the documentary film, The Stair Event, is the only film on stair use and safety. It is based on the 1978 field study of spectators’s use of stairs at the Commonwealth Games in Edmonton, Canada. Intended for professional and nonprofessional audiences, it has been a major impetus for significant improvements in stair design standards in the US. Especially in new public assembly facilities having aisle stairs (in stadia, arenas, theaters, etc.), aisle handrails became the norm after about 1985 in the US—largely because of the film and its entertaining lessons for all viewers.