nickdrake:

Kyle MacLachlan, left, and director David Lynch discuss a scene on the set during production of Blue Velvet, 1986.
sirpeter64:

Bob Dylan on the streets of Greenwich Village.
soundsof71:

Crosby, Stills, Nash & Young, 1974. Photo by Joel Bernstein. 

Allen Ginsberg and Gary Snyder, circumambulating Golden Gate Park, San Francisco, during the Human Be-In, January 14, 1967. c. Lisa Law.
theswinginsixties:

The Kinks
pinkfloyded:

David Gilmour probably circa Wish You Were Here period.
0131georgie200:

Dr. Strangelove (1964)
nickdrake:

The Blues Brothers.