This shot of Paul Newman lying flat on a bike was taken on the set of "Butch Cassidy and the Sundance Kid" (1969). And neither one of these three things: planking, riding a fixie, or smoking is considered cool anymore – unless you are Paul Newman.
Besides being a film director, entrepreneur, humanitarian and racecar driver Paul Newman is one of my all-time favorite actors: Butch Cassidy and the Sundance Kid and The Sting (both directed by George Roy Hill and co-starring Robert Redford), Cool Hand Luke – What we got here is… failure to communicate. – and Slap Shot (yes).
Edit: just saw this via Google: ericofthedead had the very same thought when seeing this photo.