There will be a screening of the Men at Lunch: The Untold Story of a City’s Legend documentary, at 2 p.m. June 11 at the National Museum of Industrial History, 602 E. Second St.

Director Seán Ó Cualáin tells the story of “Lunch Atop a Skyscraper,” the photograph taken during the construction of 30 Rockefeller Plaza of eleven workmen taking their lunch break while on a Bethlehem Steel girder.

Reservations are on a first come, first serve basis. RSVP required: call 610-694-6644, ext. 108 by May 31. Free for NMIH members and included with admission for non-members.