Director Seán Ó Cualáin investigates the engrossing story of "Lunch Atop a Skyscraper," the iconic photograph taken during the construction of the RCA Building (now the GE Building) at Rockefeller Center that depicts eleven workmen taking their lunch break while casually perched along a steel girder, 850 feet above the ground.

For decades, this image has captivated imaginations the world over. But who are these men? And where did they come from? Each step in this compelling documentary deepens the mystery while shedding light on the lives of ordinary workers in the throes of the Great Depression.

DIR Seán Ó Cualáin; PROD Eamonn Cualáin. Ireland, 2012, color, 67 min, Blu-ray. NOT RATED