Yet another classic

Following the Bataan movie, another gem: Behold a Pale Horse, starring Gregory Peck. Lesser known, certainly, than his classic roles in Guns of Navarone and Moby Dick, a sweet film about a little-known aspect of history, the Spanish Civil War. It also stars, in great roles as well, Anthony Quinn and Omar Sharif.
Rico says where else are you going to get star power like that in one movie, shy of some blockbuster like The Longest Day or A Bridge Too Far?